Material: Made of flexible odorless TPE instead of odorous PVC, the material stays soft without hardening or cracking under long-time frequent usage.Structure: Covered with dense bottom suction cups to attach steadily on smooth tub surfaces; surface pebble bumps improve friction while delivering foot massage effect.Size & Design: Measured 16"×28", the rectangular layout covers most standard bathtubs. Raised pebble styling matches various modern bathroom and spa decor.Maintenance: Allow machine washing with cold water and mild detergent. After usage, fix the mat onto tub or wall for hanging dry to prevent unwanted buildup and retain clean surroundings.