Eight (8) upper o-rings for Honda fuel injectors. Will fit injectors used on OBD0, OBD1 and OBD2 Honda vehicles. ID = .284" x 0.087" thick. O-rings are made of Viton® material which can withstand temperatures over 500 degrees farenheit and has excellent resistance to solvents and oils. Viton o-rings are the only type of o-ring you should use for automotive fuel injector applications. Free shipping to USA and Canada. Shipping cost to UK, Australia & all other countries is $2.00. Paypal accepted.