Convenience: The bags are designed to wrap and secure around the legs for a secure fit without worry of loosening. Maximum Weight: Each tube can hold 15 LBS, making it a weight capacity of 30 LBS per leg. Stability: Secure any Instant Leg Canopy, Pop Up Tent, Gazebo Structure, Camping Sun Shelter or Sports Umbrella with the durable universal weight bag set. Warranty: All of our canopy components carry a 1 year limited warranty and are warranted to be from defects in materials and workmanship during this period. Damage caused by improper fastening, strong winds, snow, ice or rain are not considered defects. Likewise, it does not apply to damages directly related to abuse or neglect, whether accidental or intentional. .Spare Parts: We have spare parts on hand and ready to ship. .Trained Customer Service: Our customer support staff is trained on our entire product line and will be able to assist you with any questions or concerns you may have regarding our products.