Features: 1/4 inch screw port at the bottom, which can expand most photographic equipment. brand new and high quality Easy to install, compact and portable. Long screw adapter on the back, suitable for most sports camera mounts. Mounting base adapter for GO2 thumb camera. The metal extension arm is made of CNC aluminum, and the hollow design reduces the load. Specifications: Material: ABS,Aluminum alloy for_Insta360/GO2 Color: Black Net Weight: 56.1g Package Weight: 64.5g Product Size: Adapter Frame:Approx.5.3 X2.7 X 4.8cm/2.09X1.06X1.89in Long Screw:Approx.5.6X1.9cm/2.20x0.75in Base:Approx.3.5X3.1X3.1cm/1.38x1.22x1.22in Extended Arm16.5X1.6X1.5cm/6.5x0.63x0.59in Package Size: 18.5x13cm/7.18x5.12in Package Includes: 1pcs Adapter box 1pcs Adapter base 1pcs Long screw 1pcs Extension arm note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.