Shower Niche 40.6 x 50.8 x 10.2 cm Recessed Wall Divider Shelf BathroomShower Niche 40. 6 x 50. 8 x 10. 2 cm Recessed Wall Divider Shelf Bathroom Product Features Sealed and Waterproof The insert shower niche uses a triple layer waterproof base of XPS foam board, cement mortar, and waterproof coating, ensuring 100% sealing. It safeguards walls from wet and humidity, extending their lifespan and avoiding water penetration, keeping interiors dry and hygienic. Note: This product needs to be used in conjunction with