This is a new set of 4 current production viton valve stem seals for the Suzuki DR250 '82-'89. Seals for the '90 and newer models can be found in my other auctions. Viton has the highest temperature threshold and resistance to chemicals compared to all other seal materials and are offered here at a fraction of OEM cost. Also containing 5% Teflon for reduced friction and wear. These are the best on the planet, satisfaction guaranteed or your money back. Please contact me if you have any questions. Thanks for looking!