2pcs scuba diving arm clamp mount with 6 inch dual ball joint arm connector Lightweight aluminum alloy processing ball head socket to meet the highly accurate and durable requirements Adjustable spinning handle design, can connect multiple diving devices; naturally suitable for and made of resin to enhance its operability, with lower consumption, easy to loose, adjust the relative angle of the joint arms firmly clamp the ball joints Can rotate 360 degrees, 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 Clamp Mount Size (L x W): Approx. 59 x 62 cm / 232 x 244 inch Joint Arm Length: Approx. 15 cm / 6 inch (The distance between two O-rings is 6 inches) Joint Arm Width: Approx. 24 cm / 094 inch Diameter of the ball: Approx. 254 cm / 1 inch colour:Black Material:Aluminum Alloy Package Contents: 1 * Arm Clamp Mount 1 * Dual Ball Joint Arm Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.