Waterproof and anti rust materials and wear, doubling life compared to standard pulleys, ideal for humid areas like balconies or storage rooms Designed for 21mm diameter tracks, these sliding door rollers adapt to various wardrobe and door systems, fitting both new installations and retrofits for versatile home upgrades Features high strength bearings supporting up to 80kg, ensuring smooth sliding for wardrobes and doors without jamming or damage, perfect for homes and offices requiring stability and durability Rubber coated reduce friction noise by 30%, providing quiet operations ideal for bedrooms, studies, and quiet spaces where minimal disturbance is desired Innovative design allows effortless setup within 5 minutes without tools, making it suitable for DIYer enthusiasts and home renovations with hassle less assembly, Manufacturer: Geavonyg