Outdoor Weight Sand Bag: If your tent get blown away in high winds, did your trampoline move while the kids were playing? -- Extremely unsafe! The new upgraded heavy duty sandbags are not easy to break, keep your family safe and enjoy your good time. STABLE&STURDY: Industrial-grade weight bags are equipped with two fastening belts, which are sewed on weight bags,making it attaches to pop up canopy tent frame easily and firmly. Set of 4 Weight Bags: Stabilize any Instant Canopy, Pop Up canopy or folding gazebo structures with a set of durable universal weight bags. Suitable for Most instant canopy and pop-up structures in the market include Caravan canopy, Instant Canopy, Instant Shelters, Impact Instant Canopies. MULTI-USE: Gazebo Sand Weights are EMPTY! Each sand bag can hold up to 20-25 lbs. And it can be filled with anything, such as sand, gravel rocks, even nuts and bolts, etc. Its premium and professional quality makes it can be used indoor and outdoor, often on any Canopy, Tent or Gazebo,Patio,Sports and Backyard. Note: Please allow slight dimension difference due to different manual measurement. Thank you for your understanding. Outdoor Weight Sand Bag Durable universal weight bags STABLE&STURDY, MULTI-USE New upgraded heavy duty sandbags Not easy to break, keep safe and enjoy your good time