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Description
RAM Tough Ball - B Series 1" - with 6mm M6 Male Threaded PostRAP B 379U M616 RAM Tough Ball with M6 1 x 6mm Threaded Stud (B Size) The RAP B 379U M616 is a RAM Tough Ball with a 1" B size rubber ball on an M6 1 x 6mm stainless steel stud. The M6 thread suits a range of marine electronics and accessories, giving you a B size ball that drops into any B size RAM double socket arm. Key Features M6 1 x 6mm male thread for devices with an M6 mounting hole 1" B size rubber ball fits any B size RAM double socket arm
RAP-B-379U-M616 – RAM® Tough-Ball™ with M6-1 x 6mm Threaded Stud (B Size)
The RAP-B-379U-M616 is a RAM® Tough-Ball™ with a 1" B-size rubber ball on an M6-1 x 6mm stainless steel stud. The M6 thread suits a range of marine electronics and accessories, giving you a B-size ball that drops into any B-size RAM® double socket arm.
Key Features
- M6-1 x 6mm male thread for devices with an M6 mounting hole
- 1" B-size rubber ball fits any B-size RAM® double socket arm for near-infinite adjustment
- High-strength composite body with stainless steel stud for marine and outdoor use
- Backed by RAM Mounts' lifetime warranty
Common Uses
Handy for mounting a Raymarine Dragonfly depth sounder, and used as a mounting base on RED paddleboards from 2020 onwards, which switched to a 6mm thread.
Specifications
- Thread: M6-1 x 6mm
- Ball size: 1" (B size)
- Material: high-strength composite with stainless steel thread
- Weight: 32 g (0.07 lb)
- Load rating: 907 g (2 lb) standard use, 454 g (1 lb) heavy-duty use
FAQs
Which RED paddleboard does this suit?
RED boards from the 2020 model year onwards, which use a 6mm thread. For 2017 to 2019 boards you need the M8 version (RAP-B-379U-M81208).
Which RAM arms does it fit?
The 1" ball fits any B-size RAM® double socket arm and any B-size socket base.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow.
I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine.
Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow.
Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money.
UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Soft comfortable very good pillow
Size: King (Pack of 1), Color: White
I really love my new pillow it's great and comfortable. Yes, it has a little smell, but if you wash the pillowcase and put the pillow on the window for a day you won't notice anything anymore.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Best place for head
Size: Queen (Pack of 1), Color: White
Do you love not getting sleep and sweating all over your pillow at night when you are asleep? If so then don't buy this pillow! If you want a good nights sleep and cool pillow like me this is the one. Ive always been ehh towards spending so much on a pillow but its 100% worth it, I sleep so much better and it forms to my head and keeps me cool at night. Great support even for my big head and comes with a bag of extra stuffing if you want to have a little more firmer pillow. Highly recommend
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Reviewed in the United States on April 4, 2026
★★★★★ 3
Oversized
Size: Queen (Pack of 2), Color: White
I have chronic neck pain. I am forever buying new pillows. Sometimes I think I found the perfect pillow but then three months later they’re losing their loft. I thought I would give these pillows to try since the stuffing is removable. Now these pillows are really oversized. To the point where I thought that they had sent me king-size pillows but I double checked the packaging and they were Queen. I ended up having to buy king-size pillowcases for them because they just barely fit in the queen size and the pillowcases would always end up pulling back from the edge. So that’s a negative one star there. Now I’ve been sleeping on these pillows for a while and they have held up well. I did end up removing some of the stuffing because it was just too much. I’m a side sleeper and when I use this pillow, it does a good job of keeping my neck in alignment. However, the pillow tends to migrate up as I sleep. Or I tend to slip down off the pillow, either or. So that’s why I’ve removed a second star. Maybe if I removed more stuffing that wouldn’t happen, but then I feel like the loft would be too little. I will say that these provide great support when sitting up in bed reading or watching TV. So would I buy them again? Probably not. Am I going to keep using them? Yes
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Reviewed in the United States on December 23, 2025
★★★★★ 5
The most comfortable memory foam body pillow
Size: Body(Pack of 1), Color: White, Size: Body(Pack of 1), Color: White
Homelab adjustable shredded memory foam pillow hugs to the curve of my body so comfortably at night. Since I’m a side way sleeper, it’s really nice to have a pillow to prop up my knee on the side.
The pillow arrives in a vacuum sealed bag, and it bounced into shape quickly. The pillow cover is made with a really nice material, it’s soft and thick and it stays cool. The shredded memory foam inside makes it so easy to adjust the firmness of the pillow. I think this pillow is made with high quality material and would recommend it to all the side sleepers.
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Reviewed in the United States on April 2, 2026