Product Description: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Quality metal material for a long service life4. Exquisite workmanship,top choice for your replacement5. Trumpet Repair Kit is suitable for daily maintenance and repair of B-flat trumpet,cornet and B-flat palmSpecifications:Material:Trumpet Stems Button Material:MetalTrumpet Repair Kit Material:Copper+Metal+PlasticColor:Multicolor+SilverSize:Trumpet Piston Button Size:3.3x2.3cm/1.30x0.91inch(LxW)Trumpet Repair Kit Size:S Trumpet Drain Valve Key:26.7x9.9x10MM/1.05x0.38x0.39inch(L x W x H)L Trumpet Drain Valve Key:47.8x10x10MM/1.88x 0.39x0.39inch(L x W x H)Trumpet Cork Pad:3x8.9MM/0.11x0.35inch(H x Dia)Trumpet Drain Valve Spring:16.8x8.4x15.5MM/0.66x0.33x0.61inch(L x W x H)Trumpet Valve Springs:46x8.8MM/1.8x0.35inch(L x Dia)Trumpet Valve Guide:18x11x4.5MM/0.7x0.4x0.17inch(L x W x Inner Dia)Trumpet Valve Slide:80x25MM/3.14x0.98inch(L x H)Trumpet Valve Slide Screw:8x9.9MM/0.31x0.39inch(L x Dia)Tuning Screw:24x7.9MM/0.94x0.31inch(L x Dia)Scew:13MM/0.51(L)Weight:104 g Package include:1 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 Springs3 x Trumpet Valve Guide1 x Trumpet Valve Slide1 x Trumpet Valve Slide Screw1 x Tuning Screw2 x Screw3 x Trumpet Piston Button