Feature:1.The thickness is about 6.8mm, the diameter are showed below.2.Suit for ALto/Soprano/Tenor Saxophone3.Rust-proof and durable steel4.Item include 8 pieces pads replacing iron with 16 kinds specifications5.The flat leather pad tool is used for the replacement of the new leather pad and the repair of the leather pad when it leaks. This set of tools is easy to use and is suitable for professional service technicians and ordinary enthusiasts. Instructions:1. Prepare the tool with the appropriate specifications for the mat first.2. Heat the button cover with a gas torch (the button needs to prevent the burn button)3. Place the tool between the leather pad and the sound hole and press the key cover.Material:steelColour:Silver Package Contents:8 * Saxophone Repair Tool Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.