Features: Used for alto saxophone maintenance, and replace the damaged, old or dirty parts. This replacement parts combo come in a package, easy to use and you can do the repair job anywhere and anytime. You can enhance your hands on ability and have better knowledge of alto saxophone. Time-saving and money saving, you do not need to turn to other people in that field and yourself is a professional person. Very excellent DIY maintenance tools for wind instruments lovers. Specification: Main Material: Metal Color: Shown as pictures The Longest Roller Length: Approx. 16.4 cm / 6.47 inch Weight: Approx. 77 g Packing List: 18 x Rollers 24 x Needle Springs 26 x Rat tail Screws 4 x Reeds 4 x Reeds Screws 2 x Adjusting Screws 3 x Nuts 11 x Round Head Screws(8 Large, 3 Small)