MARTINS INDUSTRIES’ adjustable 3-tier, 4-tier and 5-tier Tyre storage shelving racks can store a range of tyre/wheel assembly sizes (passenger car, SUV & light truck) in your tyre shop, car dealership or small tyre warehouse. Easy to assemble. All parts come in one box: Mounting brackets, Floor Fasteners and Wall/Back-to-Back Brackets. Adjustable shelf height according to tyre size.