Gimbal Head GH-A: Lightweight, easy to carry and pack, you can fix the GH-A on a formal ball head in a second to allow the lens rotating or moving up and down, remove the GH-A, and your ball head is ready to use with smaller lenses. GH-A is compatible with international-style QR system and Benro PL Series special lens plate would be your best choice.

if you have one ball head with international clamp, GH-A will be your perfect choice, reasonable price, small and easy for carrying. As we can guess from the model name, GH-A is an arm, it has to be used with a bullhead. It can be transferred to a gimbal head with a bullhead. GH-S has a built-in international style quick release clamp. In order to use the head, your lens must be equipped with an international style lens plate (Benro PL Series).