SmallRig Manfrotto Drop-in Baseplate 2887B is designed for quick installation of Manfrotto quick release plate. The quick-release plate can be quickly locked after being inserted and finely adjusted according to the width of the quick-release plate. There is an intermediate position when unlocked. The locking position can be adjusted back and forth to prevent the quick-release plate from sliding out of the baseplate. The quick-release plate is preset with two anti-drop screws to prevent the quick-release plate from falling off when adjusting the distance. Five anti-drop threaded holes are reserved, and the anti-drop screws can be installed according to actual user needs. Comes with multiple 1/4''-20 & 3/8''-16 threaded holes at the bottom to mount on a tripod or ahead.