Instrument Clinic Seamless Alto Saxophone Cork Kit, Maintenance Items (2) 100% Natural Saxophone Neck Corks, fits ALTO Saxophones ***Requires Contact Cement for Installation (not included) (1) razor blade, (1) contact cement brush (1) tube of cork grease, (1) .25oz jar of key polish, (1) 5ml bottle of key oil (1) Instrument Clinic written instructions, (4) pieces of sandpaper