The Symple Stuff 4-tier metal storage racking is a must for every household! It is strong, durable, and practical, and comes with 4 shelves that can each hold up to 130kg in weight (total weight capacity 520kg). Perfect for warehouse, shop, basement, storeroom, utility room, office and etc. Adopting the plastic-spray process, round metal corners, and a curly edge of the supporting pillar, which can effectively protect your hands from scratches and guarantee the loading capacity of this shelf. Easy to assemble with only a rubber mallet required for assembly. No Nuts/Bolts are required thanks to its unique keyhole locking system, it can be assembled into 4 tier structure or workbench structure. It is the ideal storage solution for every household!