ASTM Compliant and JPMA Certified! The ONLY bed rail that works with all beds...even Platform Beds... and will fit all mattresses GUARANTEED. Extra tall for added safety. The patented anchor strap positions the bed rail firmly against the mattress and will adjust to fit from twin to king. Two-hand release design folds bed rail down and out of the way when not in use. Material: METAL Age: Child Color Mapping: White Gender: Unisex