Features Quality Material: They are very sturdy and can help umbrellas,tent,canopy stay up in strong winds.they are made by hand sewing.The bags are made of sturdier PVC waterproof material, well structured, they are sturdy.Velcros, hooks and straps on each weight bag are convenient for you to wrap around the leg of your canopy, so that the canopy can withstand strong wind and other weather elements. Size: 12.8†x 7.9â€. Suitable for legs ranging from 15MM to 50MM size.You can adjust them up and down as you need. Capacity: This MRWiZMS water weights (Set of 4 Weight Bags) hold up to 10 Liters of water. Weight deflates for easy storage, save 90% more space.After being folded, the size can be only 6 x 6 x 2in. Specially designed: Don't worry no sands in urban city, just fill with water cyclically can hold your canopy tent as sand bags do.unique designed straps ensure that the weight bags steadily stay attached to your instant canopy or pop up shelter legs or upper trusses. Applicable For: Universal for stabilizing Instant Canopy, Pop Up Canopy, Commercial Instant Canopy, Beach Canopy, Compact Canopy or even Gazebo, Camping Sun Shelter, Patio Umbrella. Fits all canopies, gazebos and umbrellas whose leg or pole is 15mm to 50mm in diameter. Product DescriptionProduct Description MRWiZMS Gazebo Water Weight Bags PVC waterproof material The bags are made of sturdier PVC waterproof material, well structured, they are sturdy. Ideal for Gazebo Weight Bags These are simple to carry despite the weight when filled.They are also easy to empty and store when finished using. Product name: Gazebo Water Weight Bags Material: PVC waterproof material Colour: Black package includes 4 x Gazebo Water Weight Bags warmest tip If you have any questions, please contact us immediately. We will reply you within 24 hours and give you the best. Safety Warning Always ensure the product is securely attached to the canopy or umbrella. Use in windy conditions may require additional securing measures. Keep away from open flames and heat sources. Do not leave unattended in strong winds or storms.