FOTGA DP3000 C-shape Bracket Cage +Top Handle Grip Support for 15mm Rod DSLR Rigs Made of durable anodized black aluminum Lockable in the required position Used together with follow focus, matte box, camera cage, LCD monitor etc. Grip made of soft anti-slip rubber and it is bigger than most handle grips on the market on size(diameter of the handleis about 13cm), which make it much more safe and comfortable to hold There is a 1/4" hole on the top of the C-shape cage bracket,which allows you mount device with 1/4" mount,such as a friction magic arm with monitor,etc.