Pdr Tools, Suncarle&reg; PDR Tap Down Tools 10pcs Heads Hammer Paintless PDR Dent Repair Kit The top parts made by POM better than plastic ,10 heads. Easy to control ,ebayone can removal the dent by yourself. POM (polyformaldehyde) Material is better than nylong. Environmental protectionit and it does not damage the original paint. For the dent of all kinds of flat metal ,such as automobile ,the washing machine's metal plate.