Features: Quick-released magnetic metal base, suitable for Hero 11 10 9 8/Action 2/360 OneX2 action cameras. Four M2-screws are included, which can replace the camera base to realize quick installation and quick removal. Universal 1/4-inch screw hole, card base with 1/4 ARRI positioning hole, double-leaf card slot, which can connect camera, cage, tripods, self-timer, bicycles clip and others. With anti-skid anti-loose rubber pad, it can protect the camera from loosening, scratching and slipping. With L-type dual-purpose wrench, slotted-screwdriver and cross-screwdriver, convenient for disassembly and assembly. Specifications: Material: Aluminium-alloy Size: about 3.9x2.1cm/1.53x0.82inch Applicable Models: for Hero 11 10 9 8/Action 2/360 OneX2 Action Cameras Package Includes: 1x Magnetic Base 4x M2-Screws 1x L-Type Wrench 1x Slotted Screwdriver 1x Cross-screwdriver note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitor resolution.