Flow through Rack: Loading capacity: < =1000 kgs each Layer Uprights: H< = 2200mm, L< =2000mm Canton Roller wheel is made of Thermoplastic, Roller shaft made of STAINLESS STEEL, Loading capacity 6KG Wheel Main Parts Specs:Frame,beam,middle beam,roller divider plate and other accessories. Surface treatment:High-quality Powder Coating Finish.