Tanstic 12Pcs Valve Spring Compressor with Valve Lapper Set. --Valve Lapper: Rubber and Plastic. Valve lapper: 205mm/ 230mm. 1pc 16mm 205mm valve lapper. 1pc 36mm 230mm valve lapper. 【Valve Lapper】: Clean all carbon deposits off valve and wipe down each valve, install valve in valve guide, press correct size suction cup firmly onto head of valve, and lightly spin tool handle between palms of your hand until a suitable finish is obtained.
eBay