The Trumpet Double Mouthpiece Pouch in black canvas protects up to four mouthpieces or several configurations of underparts, rims, and full mouthpieces. Each pouch is lined on the inside with soft fabric with foam backing. The edges are trimmed with strong canvas to eliminate tearing and fraying so you can use the pouch for many, many years. Wrap-around flap with Velcro closure adds protection to mouthpiece rims.