bracket with locking concept, innovative design of the press shrinkage design, making the adapter installation more stable, but also faster, time-saving and labour-saving Suitable for 12 Black / 11 Black / 11 Black / 10 Black / 9 Black / 8 Black used to replace the official base for quick release function The base with quick release adapter bay, quick release base, making the old camera quick release convenience With screwdriver, mounting screws shipment, disassembly and installation is Connection the adapter bracket with 1 / 4inch screw holes at the bottom, to directly connection the small head with 1 / 4inch, sticks, handle