Upgrade Silicone Seal Ring: The seal of the knee cast cover is made of premium silicone material with high elasticity that won't tear. The seal ring is soft and stretches easily to fit most leg sizes. Note: Please measure the leg length and maximum knee circumference before ordering, especially if you have a cast or bandaged area. Size Fits Most Adults: The knee shower protector after surgery is easy to put on and take off without touching the wounded area. Item size: 15.7" x 11" (40 cm x 28 cm). Fits adult leg circumferences from 11.8" to 22" (30 cm to 56 cm). Quality Assured: Avoid sharp objects during use. If you have any issues with our waterproof knee cover for shower, please and we will respond promptly. Completely Waterproof: Don't let a cast or wound prevent you from showering. Our knee surgery shower cover is waterproof and leak-proof, providing a secure watertight seal around the knee. Ideal for adults recovering from knee replacement surgeries, injuries, or accidents. Reusable & Durable: Made from high-quality materials, the knee shower protector can be reused for an extended period. After each use, simply hang to dry and store easily.