HIGH DENSITY WATERPROOF MATERIAL: This octagon sandbox cover is made of 420D Oxford fabric and coated with a waterproof PU layer, which is weather proof, waterproof, UV resistant, and tear resistant. Regardless of the weather, octagon sand box cover can protect your children's sandbox from the effects of sunlight, rain, snow, wind, and dust. UPGRADED DRAWSTRING DESIGN: Compared to other ordinary drawstrings, we have specifically strengthened the rope design, which is elastic and more sturdy. octagonal sandbox cover can ensure that your children's sandbox is more sturdy on windy days, protecting sand and toys from leaves, dust, and rain. SIZE COMPATIBILITY: Our outdoor octagon sand box cover is 3-5 centimeters larger than most waterproof covers on the market (if the size is too small, your cover can easily tear). Please check the size of your children's sandbox before purchasing. EASY TO USE AND CLEAN: This cover is designed specifically for children's bunkers to keep toys and sand clean, making it a great companion for children to play outside. At the same time, it is equipped with a storage bag that can be folded and stored when not in use, saving space. The sandbox is safe and convenient to carry. WIDELY USED: Octagon sandbox cover is not only an ideal cover for children's sandpits, but can also be used as sandpit covers, swimming pool covers, sandbox covers, garden swimming pool covers, furniture waterproof and dustproof covers, etc.