This is a new set of 8 current production viton valve stem seals for the Honda GL1000 Gold Wing all years. These are not factory rubber seals that have been sitting around hardening for 30 years. These are made now.....in the 21st century! Superior metal clad viton construction containing 5% Teflon for reduced friction and wear. Viton has far better resistance to temperature and hardening due to fluids and many years of use. These are the best on the planet, satisfaction guaranteed or your money back. Please contact me if you have any questions. Thanks for looking!