These tire racks are excellent choices for garage storage, providing plenty of space to keep your tires neatly organised. Sturdy frame: The tire rack consists of a steel frame. The steel frames guarantee sturdiness and stability.Strong load capacity: Thanks to the thick material, reinforcement bars for each layer and boltless shelving design, the rack has a supreme load capacity.Flexible storage: The layers are height adjustable. Thus, the tire shelf provides ample storage space for different size tires you want to store and always keeps your space neat and well-organised. Note:Each product comes with an assembly manual in the box for easy assembly. Warning:In order to prevent overturning, this product must be used with the wall attachment device