Features: 1.[2PCS SLIDE STOPPERS] Includes 2pcs trumpet slide stoppers in appropriate size for easy use and replacement. 2.[MAIN PURPOSE] Designed to prevent slippage of the first and third slides of the bell valve, with good practicality. 3.[SILICONE MATERIAL] Made of excellent silicone material, which has good elasticity and resistance to stretching. 4.[PRACTICAL ACCESSORY] With multiple functions, it can be used in 3 different positions, is great trumpet accessory. 5.[GLOSSY SURFACE] These stopper rings are glossy, soft and durable without damaging the trumpet surface. specification:Item Type: Trumpet Slide Stopper Material: Silicone Colour: Black PackageList:2 x Trumpet Slide Stopper