EXTRA SAFETY. These umbrella base weight sandbags are truly robust and versatile. Use them as outdoor furniture weights to keep drying racks or trampolines stable, or as door stoppers! UP TO 49 LB. You can fill each umbrella sandbag with sand, gravel, or stones (not water!) to create a patio umbrella weight of 49 lb (22 kg) and keep a cantilever umbrella base secure and in place. FOR ANY HARSH WEATHER. These umbrella weights for outside use are made of tough, water-repellent, UV-resistant, anti-dirt material that withstands extreme temperatures—year-round sandbags for stands. LAST FOR YEARS. Each beach umbrella sandbag is made of high-density 600D reinforced fabric that doesn't tear or stretch. No plastic layers, so no molding or dampening inside the umbrella weight bags. SMART, USER-FRIENDLY DESIGN. Arch-shaped umbrella weights provide a larger contact area. Carry the umbrella sandbag weights by the sturdy strap on each. Fill the sandbags easily through large openings on both ends with ultra-dense, mess-free hook & loop fasteners. Quantity: 4 Pieces Color: Black Material: Canvas Package Contents: 4 x Outdoor Fillable Sandbags Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.