2pcs scuba diving arm clip clamp mount with 6 inch dual ball joint arm connector Lightweight aluminum alloy processing ball head socket to the highly and durable requirements Adjustable spinning handle design, can connect multiple diving devices; naturally suitable for and made of resin to enhance operability, with lower power consumption, easy to loose, adjust the relative of the joint arms firmly clamp the ball joints Can rotate , and can rotate about 80 degrees in the horizontal direction; have a higher degree of freedom to adjust the direction of the flash Wide range of strong practicality, is photography enthusiasts a great choice Butterfly Clip Clamp Mount Size (L x W): . 5.9 x 6.2 cm / 2.32 x 2.44 inch Joint Arm Length: . 15 cm / 6 inch (The distance between two O-rings is 6 inches) Joint Arm Width: . 2.4 cm / 0.94 inch Diameter of the ball: . 2.54 cm / 1 inch colour:Black Material:Aluminum Alloy Package Contents: 1 * Arm Clip Clamp Mount 1 * Dual Ball Joint Arm Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.