This 2-pack car wheel dolly set is designed for moving stored vehicles, offering stability and longevity with its sturdy construction. Each dolly has a maximum capacity of 1500lbs and can accommodate tires up to 12" (30cm) wide. The diamond plate structure prevents tires from slipping. Specifications include: Item Type: 2 Pack Wheel Dolly, Capacity: 1500lbs per each, Castor Diameter: 3 inch (2 castors with brake), Castor Material: Iron. These are great for garage, workshop, and shop use, allowing movement in every direction thanks to the 4 x 3" swivel castors.