Easy Application & Removal: No retaining ring design with high elasticity opening allows for easy pull-on and off, ensuring comfortable application and removal while maintaining blood circulation. Superior Water Resistance: Medical-grade silicone diaphragm seal made with durable, tear-resistant elastic rubber keeps casts and bandages dry during showers and water activities. Safe & Reusable: Non-latex material prevents skin irritation and is suitable for repeated use. Designed for safety: PVC/TPU material is ideal for individuals undergoing chemotherapy, bathing, or showering. Safe for those recovering from injuries, surgeries, or skin conditions. Adult size fits leg, knee, foot, or ankle circumferences between 11.8" to 20.8" (30 to 53 cm). Product Features: Comfortable design eliminates the traditional retaining ring for added comfort. Improved sealing material uses neoprene for better elasticity and softness, reducing pressure at the seal. Reliable performance achieved by molding PVC (TPU) and neoprene rubber together, creating a leak-proof and aesthetically pleasing design that does not trap water. Dimensions: Item length is 19.5 inches (500 mm), fitting upper arm circumferences from 11.8 to 20.8 inches (30 to 53 cm). Material: Made of Neoprene + TPU, ensuring durability. Weight: Package weighs approximately 190g.