4PCS Size: Diameter 20cm * Height 32.5cm Fabric: PVC waterproof cloth se in urban city: Don't worry no sands in urban city, just fill with water cyclically can hold your canopy tent as sand bags do. Water and Windproof: User friendly with easy grip handle and screw cap top, made with strong PVC waterproof Material,do not leak. Each weight bag with convenient velcro, hook and strap to wrap around the leg to your canopy, allowing it to withstand high wind and other weather elements. Very easy to use and transport/carryThis water weights (Set of 4 Weight Bags) hold up to 10 Liters of water. Weight deflates for easy storage, save 90% more space. User-friendly design: The velcro straps are long enough to handle our 45* angle legs. Be suitable for leg sizes ranging from 15MM to 50MM. you could adjust them up and down as far as you needed, Just fill close flag and attach to your canopy for a secure stable set up. Multiple Usages: Perfect for ABCCANOPY KINGKONG, DELUXE, RHINO, AWNING and beach canopies.