[0.22 lb] Well made and affordable! This is just what I require to add versatility to my U/W lighting.

[0.22 lb] All metal with a really solid simple feel. It keeps a good grip and I cannot think of any problems. Im glad i spent a little extra for this quality.

[0.22 lb] The Aquatica ball clamps are really good at holding arms in place. The large knob allows for easy tightening and loosening above and below water. I found that the Aquatica clamps hold better than the Ultra Light clamps. You can really crank down tight with this large knob. I like how some of the Ultra Light clamps have cutouts, but this further limits the arm hold. Think about whether there is a heavy or long arm that will be clamped. If so, go with Aquatica. I have a 16-inch arm attached to one triple ball clamp. There is a heavy underwater video light on the end of that 16-inch arm. This is a good amount of weight out of water. The best clamps will allow a little bit of movement out of the water when there is a 16-inch arm and a 1 1/2-pound video light on it. The Ultra Light moved a lot, every time. If weight or length is not an issue, then most other clamps will work fine.

[0.22 lb] Not as versatile as the double cutout but having only one half cutout makes the connection stronger while still allowing the ability to mount in more directions. Also a vibrant touch of red for A cam folks.

[0.22 lb] excelente calidad del producto y muy bien precio

[0.22 lb] This is a quality product, I can mount a light and GoPro on the same ball on top of my camera. It is also nice to know what the final price will be for Canadian shipping.

[0.22 lb] Ultralight makes the highest quality arms I've ever used, and this t-knob clamp is no exception. The red finish is super high quality, this will last for years.

[0.22 lb] I have two floating arm on each side of my underwater camera.
Its pretty heavy that I needed two on each side for neutral buoyancy.
Two of my floating arms are larger than the otheres that if i used regualr ball joint clamp, it would not fold completely.
But with this extended ball joint clamp, I can fold 100%.
Great item!

[0.22 lb] Great for use on camera, a lot more adjustable than the ones without cutouts with only slightly compromised grip because of the smaller surface contacting the ball.

[0.22 lb] I replaced all of the T-knobs on my underwater camera rig (all 7 of them), as with a black housing, black arms, black floats, and black clamps with black T-knobs, it wasn't always obvious which way the T-knobs were facing. Adding this Red T-Knob to my black clamps instantly solved the problem, and makes quick adjustments underwater easy and fast, without thinking! The machining and quality of the knobs is superb, and matches the quality of all the other ULCS products.