Features: Made of premium abrasion cloth with thickened sponge, protect your baritone and euphonium. Adopting ergonomic design, reduce the stress to human body and ease fatigue. Having undergone 8500 times pull tests at a speed of 20 times/min, the zipper is super smooth and durable. Enhanced inner fixation ensures your brass wind instrument less injurious; large capacity storage bag is convenient to carry other accessories. With mesh fabric straps, comfortable and breathable, easy to carry, strong and durable.