The rollers that I bought from yourspares are perfect for the job. I needed something that was going to help move the fridge/freezer from the normal position to enable my wife to clean behind or to find something that may have rolled behind. The wheels/rollers are easy to adjust for the size between the feet of the appliance and then easy to tilt the appliance to slip the wheels/rollers under for location of the feet. To move the fridge/freezer in a straight line is very easy.