Six (6) 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. Also included are (4) micro basket filters which are inserted in the top of most Honda fuel injectors. It is good practice to replace these periodically. Free shipping within the USA. Shipping cost to Canada is $7.50. Shipping cost to UK, Australia & all other countries is $11.80. Paypal accepted.