YOU ARE BIDDING ON A GASKET SET& ALLEN HEAD SCREW SET FOR.O.S. PET.099II ENGINES NIP.THIS ALSO FITS OS.10. I HAVE ALL TYPES OF OS & ENYA C/L VENTURIS & NVA FOR SALE OR ON AUCTION.IF YOU DONT SEE IT ASK.SEE MY OTHER AUCTIONS FOR PARTS.WILL COMBINE SHIPPING. Check out my other items!Be sure to add me to your favorites list!