Dent Fix AB712 12pc Pom Dolly Set – High abrasion resistance & non-corrosive interaction with aluminum. Made of polyoxymethylene (POM) the DF-AB712 is a set of 12 rigid dollies that are non-marking when impact against metal. The high abrasion resistance and non-corrosive interaction with aluminum allow technicians to work on the newer automotive models with aluminum panels and hoods. Also works great with steel panels as well. A blow molded case is included to keep the dollies neat and organized.