Strong Hold: Holds up to 44lbs/20kg. An ideal tool for trips or home. Works on most non-porous smooth surface TIP: Clean the surface with a cleaning cloth before each use to ensure optimal adhesion Quick, Easy, Tool-Free Installation: Simply push it onto a clean smooth surface, rotate the handle to lock securely and it would not scratch your car Powerful, heavy-duty suction cup with a strap anchors to any smooth, flat surface; ABS & PVC material for strong strength, durability, light weight. Only 0.37lbs Secure: Superior vacuum suction cup anchor securely holds loads in place. No more worries about loads that are not safely secured. Tie tents and tarps to cars, trucks for easy car camping. Use with bungee cords or rope (not included) Specification: Size & Weight Size: 3.1x6.7x1.6in/8x17x4cm Each pair weight: 0.37lbs/170g Maximum hold: 44lbs/20kg