CLARINET REPAIR KIT: 1 set of clarinet repair screw parts, includes 6 kinds of maintenance tools, clarinet springs, rollers, rollers fixing screws, springs fixing screws, wristrest fixing screws, adjusting screw. GREAT ACCESSORY: Great accessories to make your old clarinet to be a new one with these parts, especially for woodwind clarinet maintenance. EASY TO INSTALL: Good replacement part for woodwind clarinet maintenance, convenient and practical to use, a great instrument repair accessory for clarinet enthusiasts. PREMIUM MATERIAL: Clarinet Repair Tools is made of qualified metal, solid, firm and durable to use. GUARANTEE. If you are not satisfied with our product you received, you can send emails to us at any time. We will reply you instantly and help you solve your problem.