This trombone water key accessories designed to enhance the functionality and longevity of your instrument. Crafted with wood, rubber materials, the soft pads and cork components provide seal for water valves, ensuring smooth performance. Features -Color:Assorted Color -Material:Wood, rubber -Size:1.00X1.00X1.00cm/0.39X0.39X0.39in -Size:1.00X1.00X0.40cm/0.39X0.39X0.16in -Secure hold: the trombone slide rubber end tip bumper ensures a secure hold, providing excellent grip and stability during performance -Easy installation: simple to install and remove, making maintenance and cleaning convenient for users -Leakproof: the water key set features a sealed type, effectively preventing water leakage -High durability: made from wood, rubber, these trombone accessories are sturdy and reliable, ensuring long term use -Protection for your instrument: the rubber tips prevent your trombone from sliding and protect it from potential damage Package list: 10 x Slide Rubber End Caps 10 x Corks