Features: Made from Metal and Wood materials, sturdy and wear-resistant, not easily deformed or broken. The wood handle design is comfortable to grip and easy to operate. The two types of ball, big and small, can adapt to the maintenance needs of different models. Handy repair tool kits designed specifically for trumpet and trombone maintenance. It can be used in instrument repair studios, music schools, personal instrument maintenance, and other occasions to conveniently and quickly repair and adjust the Trumpet. Specifications: Material: Metal and Wood Size: As shown in the picture Package Includes: 1Set Trumpet Repair Tools note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.