[28] I love these ultralight bits. Always reliable and work well. I am not a fan of the wooden camera versions as the screw in base just never locks in enough. This tie down does the trick and you can really crank it to lock it in!

[28] I have black clamps, black arms, black floats, a black housing, black port....you get the idea. Having red colored T-knobs for the clamps makes it easier to grab and adjust the knobs, without having to look to see which side of the arms the knob is on, or to even have to think about it. They are an exact perfect fit and replacement for the OEM ULCS T-knobs. Love them!

[3.9 x 1.3 x 1"] 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.

[28] Using it to mount a PTZ camera at a strange angle on a desk. Works perfectly. Holds firm. Made very well. Great price.

[28] 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.

[28] Easy way to keep track of personal equipment.
But i recommend that if you color coordinate your gear to look at the options on the arm and save your self doing it twice. I just wish there was a discount for returning the old t knob

[28] The ULCS triple ball clamp with cut-outs on both sides is ideal when you want to mount a light and GoPro to a hot shoe, or a Go-Pro or light to the joint between two arms. Having the notches gives you extra flexibility in the angles the arms can reach. In my case, it helped tremendously when using a GoPro with a very wide angle lens, and a focus/video light. I was easily able to move the focus light out of the field of view of the camera. The standard non-cutout triple clamp doesn't work nearly as well for this purpose. The clamps don't seem to have lost any clamping strength by adding the cutouts. Highly recommended!

[0.035 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.

[28] I like the weight savings from the original Ikelite clamps. And the choice of colors for the T-knob makes my rig distinctive among the other rigs on the dive boat.

[28] great clamp