These are the best wheel dollies on the market. Why buy a cheap overseas product when you can buy an American made heavy duty product. These dollies are 1/4" heavy duty steel and powder coated in chip resistant red paint. Complete with ball bearing castors (2 " diameter) that roll easily and will last for years. Move your vehicles with ease around garage or shop. Set of 4 dollies. Platform size 12x16. Max capacity 1500 lbs. each.