4 Sets of Weight Bags: 4pcs/set versatile weight bags that helps to stabilize any type of canopy- Instant Canopy, Pop Up Canopy or folding gazebo structures with a set of durable universal weight bags. Specially designed: Double velcro lock system will ensure the weight bags stay securely attached to your Instant Canopy legs. And use the velcro top closed, its very easy to put up and release. Efficient: Made with durable Fabric 600D Oxford Cloth with PVC coating and improved double-stitched seam, they are sturdy, each bag having the ability to hold up to 25-30 lbs of weight in sand, rock, dirt and any other contents of choice. Use Anywhere: You can use them anywhere you have a canopy/ gazebo: Markets, Camping, Tailgating, Picnics, Festivals, Celebrations, Sports Events, or even at the beach. SAND NOT INCLUDE