Features:Can be used with tripod, rail, stabilizer and different devices, for Photography.Compatible for Manfrotto 501, 500AH, 701HDV, 577, etc.Fast switching between different devices without replaceing the quick release assembly.Made of aluminium alloy, very durable.This item is composed of a quick release clamp adapter and a quick release plate.Specifications:Material: Aluminium alloyItem Size: 12 x 9.3 x 2.2cmItem Weight: 271g / 9.6ozPackage Weight: 292g / 10.3oz