Compatible with for ACTION 5 Pro/4/3. Magnetic suction and claw buckle, double stability. Strong magnetic suction, with aluminum alloy claw buckle, sports without fear of bumps. Metal double claw limit buckle, stable installation and can not be thrown off. Rich expansion, . Suitable for accessories with cold shoe heads such as fill lights and microphones. Quick disassembly and installation, open and close in one second. Close to adsorption, lightly pinch to quickly release and install, outdoor is more convenient. Product name:Quick Release Base Expansion Mount Applicable models:for ACTION 5 PRO/4/3 Colour:Black Material:plastic+aluminum magnet+silicone Package Contents: 1 * Quick Release Base Expansion Mount Only the above package content, other products are not included. Note: Light reflection 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.