Portable: foldable, easy to store and bring with you and your dog everywhere Simple: No need of inflation,set up in no time. With bottom/side drain, easy to drain and refresh water Slip Resistant & Durable: made of extra-tough PVC. Thicker slip resistant material on the bottom Size: Available in 5 Sizes.S---32" x 8", M---39.5" x 12", L---48" x 12", XL---55.1" x 12", XXL---63" x 12" Enviromentally friendly material: EN71,ASTM standard. Please Trim your dogs' nails before using the pool.