Stay inMade of 600D Oxford material coated with a weatherproof PU which is UV protective, durable waterproof, super large size 34x40cm The heavy duty weight bags provide a quick easy way to keep your tent or canopy safe secure Perfect for outdoor events windy days Easy to useSimply wrap the velcro around the tent legs, tighten the strap sit back relax The bags remain firmly connected Each bag can be filled with up to 13 kg of s, gravel, soil, easy to set up release Ideal to use on hard mark Wide Application Stabilize any instant leg canopy (leg size from 15mm-50mm), pop-up tent or gazebo structures, trampoline, camping sun shade, sports umbrella with our durable package of universal weight bags Super easy to carry Anchor bags are equipped with a sturdy sewn-on polyester hle for easy portability Carry bag included for easy convenient storage Double ClosureDurable magic strap closures prevent s from spilling out during use 4PCS < /div>