Originally designed to protect starters from heat, the Shield can also be used to protect cool cans, carburetors, fuel pumps and many more areas of a car, boat, RV or heavy-duty truck. It has also been found helpful for shielding electrical boxes and instruments from intense heat. Versa-Shield can easily be cut to shape, and attaches to itself with hook and loop material.Shield will fit most starter assemblies. Simply cut off excess material with scissors or a sharp knife.