Material:Magnet Compatible Models: Gopro Hero 5/ 4/ 3+ / 3 / 2 / SJ4000 Camera Max.Load:1.6kg Dimensions:4cm x 4cm x 4cm Net:44g Package Weight:49g Direct GoPro camera mounting scratch-free, easily rotate. Compatable with all Gopro camera; support up to 1.6kg force on the flat surface. Strong magnet,can load 1.6 kg . Lightly, easily remove it. Attach to cars, heavy machinery, bridges, scaffolding, rails, poles, anywhere magnets stick.a Brand No Brand SKU OT776EL0B17DSNAFAMZ-28097