SKU: 44139302505

RAM Double Ball Mount with Round & Diamond Bases - B Series - Composite

Sale price$47.74 Regular price$53.05
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

RAM Double Ball Mount with Round & Diamond Bases - B Series - CompositeRAP B 138U RAM Composite Double Ball Mount with Round & Diamond Bases B Size Medium The RAP B 138U is the lightweight high strength composite version of the round and diamond double ball mount, pairing a round AMPS base and a diamond AMPS base on a medium B Series composite double socket arm. Key Features Round base with the universal AMPS hole pattern for surface mounting; diamond base with the 2 hole AMPS pattern for lighter device holders Includes

RAP-B-138U RAM® Composite Double Ball Mount with Round & Diamond Bases – B Size Medium

The RAP-B-138U is the lightweight high-strength composite version of the round-and-diamond double ball mount, pairing a round AMPS base and a diamond AMPS base on a medium B Series composite double socket arm.

Key Features

  • Round base with the universal AMPS hole pattern for surface mounting; diamond base with the 2-hole AMPS pattern for lighter device holders
  • Includes one round ball base, one diamond ball base, and a B Size medium-length composite double socket arm
  • RAM® ball-and-socket technology allows near-infinite adjustability and dampens shock and vibration
  • High-strength composite construction; lighter than the aluminium version
  • Backed by RAM Mounts' lifetime warranty

Works With

The round base bolts down using the 4-hole or 3-hole AMPS pattern, while the diamond base connects to RAM® and many third-party cradles with the 2-hole AMPS pattern. The 1" B Size balls suit any RAM® holder built for a B Size ball.

Dimensions & Specifications

  • Overall length: 127.8mm (5.03")
  • Arm length: 94mm (3.69") overall, 76mm (3") socket-to-socket
  • Diamond base: 61.7 x 33.3mm (2.43 x 1.31"), 2-hole AMPS 48.6mm (1.912") centre-to-centre
  • Round base: 63.5mm (2.5") diameter; 4-hole AMPS 30 x 38mm, 3-hole AMPS 120° 46.0mm
  • Ball size: 1" rubber ball, B Size
  • Material: high-strength composite
  • Weight: 227g (0.5 lbs)
  • Load rating: 907g (2 lbs) standard use, 454g (1 lb) heavy-duty use

What's Included

  • RAP-B-202U composite round base with 1" ball
  • RAP-B-238U composite diamond base with 1" ball
  • RAP-B-201U composite double socket arm for B Size 1" balls

FAQs

Q: What size screws do the base plates take?
A: The AMPS patterns most commonly take #8, #10, M4, or M5 screws. If you're pairing this with a RAM® holder, the holder comes with its own hardware; surface-mount hardware for your own application isn't included.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 44139302505

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P. SHAVER
Waukegan, US
★★★★★ 5
Great moisturizer
Size: 8 Ounce (Pack of 1)
This is the most pleasant and effective moisturizer I’ve tried. It’s very smooth and creamy, and it soaks in quickly. Ends dry, itchy skin on my legs damaged by daily golfing in shorts.
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Reviewed in the United States on April 6, 2026
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Jennifer Cifre Faure
Waukegan, US
★★★★★ 5
I love this product
Size: 8 Ounce (Pack of 1)
Since I started using this Dove Pro-Retinol + Firming cream, I honestly noticed a difference in my skin. I love that it’s not heavy or greasy—it absorbs quickly and leaves my skin feeling super soft from the very first application. I like to apply it every night and it leaves my skin well hydrated all night it doesn't matter the rose is very effective it also works for your skin marks like pink scars with contamcy you notice the difference in your skin
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Reviewed in the United States on May 31, 2026
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Meg
San Leandro, US
★★★★★ 4
Great product!
Size: 8 Ounce (Pack of 1)
This is a great product. I can definitely feel my skin getting more plump and hydrated. There is no scent, which I like. I was pleasantly surprised at the size of the bottle. It was much bigger than I expected. I will definitely be purchasing again.
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Reviewed in the United States on January 20, 2026
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Linda Bryan
Charlottesville, US
★★★★★ 5
Soft younger looking skin at a reasonable price.
Size: 8 Ounce (Pack of 1)
Absolutely love this product! It smells good and absorbs into the skin immediately. I can tell a difference in how my skin looks and feels as soon as I apply it.
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Reviewed in the United States on April 2, 2026
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Laurie A. Dumond
Cuba, US
★★★★★ 5
Feels like a luxury product
Size: 8 Ounce (Pack of 1)
the consistency and lasting hydration of this product is fantastic! I use it year-round because it is very moisturizing, but it is especially great in the summer when I don't want something heavy or greasy on my skin. The scent is a little perfumey, but it is subtle and I actually think it is very pleasant and not overpowering
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Reviewed in the United States on March 23, 2026

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