Simplified design renders easy installation and smooth operationMeticulously designed clamp ensures optimum stability to prevent unexpected fallingBraced with an ergonomic coating that ensures a firm grip when taking photos from tricky angles Compatible With:GoPro Hero 7/6/5/4, Xiaoyi YI, for SJCAM Nikon EZVIZ Action CamerasScrew Size:1/4 InchColour Name:BlackModel Number:DD3029Product Height:5.5 cmProduct Length:26 cmProduct Weight:255.83 gProduct Width/Depth:18 cm