[3.3 x 3.1 x 2"] I bought this mount to attach a ruggedized camera to the railing on my boats center console to get great pictures of fish I have caught when I am by myself. Although this unit is designed for a GoPro camera, the plate unscrews to reveal a standard 1/4-20 stud which is compatible with most cameras. The aluminum construction is very heavy duty, and the clamp holds tight. The ball head locks up solidly as well, not moving at all even in heavy seas.

[1.4 oz / 39.7 g] Well made thumb screw that will last. Nice colors to choose from to personalize your gear

[0.6 (2-Stop)] If like me you use a media mod on GoPro you know the original thumb screws are too fiddly to use. This beauty just works. Extends past the edge of the case and is Aluminium rather than plastic!
A great find at B&H!
Very happy!

[0.15 lb] This is about the only Polarizer I'd use. Personally, you don't need a circular polarizer since you should be shooting in ladscape mode, right. Works great, except it is a little easy to knock off as I'm actually on my 2nd one. I personally use an Incase Protective Cover over my GoPro when I need it ready to shoot and any other style polarizer would get in the way. Botton line, it's worth it if you shoot around water and sky or any outdoor shooting.

[0.6 (2-Stop)] Sound crazy but I work with an airshow team called FighterJets, Inc. I used this to attach a GoPro MAX 360 camera and it was flawless. For safety reasons I drilled holes in the clamp bolt and wingnut so I could secure it. The mount was on the left 23mm canon barrel and when he landed it had not moved a bit! Great product FotodioX!

[3.3 x 3.1 x 2"] This thumbscrew is longer than the original screws. It extends past the GoPro media mod case and is therefor much easier to tighten when mounting.

[3.3 x 3.1 x 2"] this thing is like part of the space shuttle, a finely crafted mount. had to remove the foam pads and replace them with a harder rubber for bicycle mounting due vibration, but they might be ok for your purpose....it sits on my handlebars now as it its one with the rest of the bike!

[0.15 lb] This is a well-made thumbscrew--a perfect replacement part. Light-weight metal should last a lifetime.

[3.3 x 3.1 x 2"] great extension for my gopro

[3.3 x 3.1 x 2"] This thing is awesome. Build quality is great. I am going to replace all of my GoPro arms with these.