[lsrge opening to put sand into]7 inch wide opening, 10L pool stair weights, up to 18kg/40lbs, perfect for removable pool ladders. Quality and weight enough to secure above ground pool steps, stairs and ladders, no more floating ladders. [more stronger handle no more tearing] The waterproof weights for pool ladder comes with a buckle, just buckle it, and you can carry it by hand. It is simple and convenient, and it is easy to pick up the sandbag. In addition, there is a strap that can be used as a storage bag to carry to the beach and sea in summer. [no more sand spills] Strong roll top closure that seals quickly and easily with a 3-roll closure that snaps on for strong durability. [quality thick material]Our weights for pool steps are made of PVC waterproof fabric, which is better air-tight and waterproof, easy to carry and very durable. Compared with other similar pool ladder weights, it is not easy to break and crack. [travel dry bag or pool steps weights]Use as a dry bag to store and organize weights for backpacking, hiking or as a pool ladder weight. Collapsible for easy storage and packing in luggage. It is suitable as a storage bag for outdoor sports such as swimming and rafting, and can solve the storage problem of clothing and other items that need waterproofing. It can also be used as a bucket in outdoor camping and fishing activities. Material: PVC colour: Dark blue / Blue Package Contents: 2 x waterproof bags 2 x ropes 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.