Features:3.Suitable for three-note B-flat trumpet, cornet, B-flat palm, spring-loaded trumpet.4.High waist spring: contraction has tension. Stronger and more . Precise positioning and guaranteed coaxiality, good hand feeling.5.Cork Pad: Made of high-quality cork, , soft and lightweight.6.Exquisite workmanship and easy to install.7.Trumpet Valve Repair Kit: For almost all of your trumpet repair replacement needs.Specifications:Material: Copper & Metal & PlasticColor: MulticolorBrand name: BQLZRSize:Drain Valve Key (Large): 47.8 x 10 x 10 mm / 1.88inch x 0.39inch x 0.39inch (L x W x H)Drain Valve Key (Small) 26.7 x 9.9 x 9.4 mm / 1.05inch x 0.38inch x 0.37inch (L x W x H)Cork Pad: 3 x 8.9 mm / 0.11inch x 0.35inch (T x Dia)Springs: 46 x 8.8 mm / 1.8inch x 0.35inch (L x Dia)Valve Spring: 16.8 x 8.4 x 15.5 mm / 0.66inch x 0.33inch x 0.61inch (L x W x H)Spring Guide: 18 x 11 x 4.5 mm / 0.7inch x 0.4inch x 0.17inch (L x W x ID)Slide: 80 x 25 mm / 3.14inch x 0.98inch (L x H)Slide Screw: 8 x 9.9 mm / 0.31inch x 0.39inch (L x Dia)Tuning Screw: 24 x 7.9 mm / 0.94inch x 0.31inch (L x Dia)Screw Length: 13mm / 0.51inchWeight: 49 gPackage include:3 x Trumpet Valve Springs6 x Trumpet Valve White Felt6 x Trumpet Valve Black Felt4 x Trumpet Spit Valve Cork Pad6 x Trumpet Valve Guides2 x Trumpet Rubber Bumper inchOinch Rings1 x Small Trumpet Drain Valve Key1 x Large Trumpet Drain Valve Key2 x Trumpet Spit Valve Cork Pad3 x Trumpet Drain Valve Spring3 x Trumpet Valve Springs1 x Trumpet Valve Slide1 x Trumpet Valve Slide Screw1 x Tuning Screw2 x Screw