This kit includes 2 new, all natural, seamless Tenor / Baritone saxophone neck corks. This is AAAA quality cork. ***Requires Contact Cement for Installation (not included) This kit also includes: (1) razor blade (1) .25oz Jar of Key Polish (1) .67oz bottle of key oil (1) Contact Cement Brush (4) pieces of sandpaper (1) tube of cork grease (1) Instrument Clinic written instructions The only other things you will need to install your saxophone neck cork are: 1 pair of pliers, rubbing alcohol, mineral spirits and soap and water.