No price reduction. Silicone, Polyvinyl Chloride [Safe Bathing] Shower time is a problem when wearing bandages or casts. With this product's excellent waterproof function, you can safely shower and bathe even when wearing bandages or casts. [Completely Waterproof] The opening is made of elastic silicone (4.5cm-12cm). It fits snugly on the arm and prevents water from entering. [Safe Materials] Uses safe medical-grade silicone. Latex-free. Manufactured in a factory that has obtained the quality management system for medical devices ISO13485 & CE/German Industrial Standard Certification DIN CERTCO/Medical Device Quality Management System CMDCAS-ISO/US FDA DRLM/Social Responsibility SA8000 certification. [Product Size] (Height x Width x Outer Diameter of Opening): 50 x 20 x 15cm, for adult arms.