brand new and high quality Features: Aluminum extension arm, used to videos and photos with new extended angle of view. Connect sports camera or panoramic camera and helmet mount/side mount or handle for higher level shooting. Made of CNC aluminum, the hollow design reduces the load. Standard 1/4 inch screw adapter, can extend backpack clip/selfie stick/tripod/wrist strap/chest strap and more photography accessories. Easy to install, compact and portable. Specification: Material: Aluminum Alloy Conversion Adapter Size: approx.23x28mm/0.91x1.1in Screw Size: approx.15x55mm/0.59x2.17in Extension Arm Size: approx.165x16mm/6.50x0.63in Optional Colors: Silver, Red, Blue, Black Applicable Models: for 360 One X2 X Quantity: 1 Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Conversion for head 2 x Long screw 1 x Extension arm (other accessories demo in the picture is not included.)