Feature: *Brand new and high quality. *It is a good product that does not disturb the people. *Made of silica gel, light weight, small size, durable and practical. *Reduce the noise effectively. *Great for anti interference and practice. *Durable and not easy to deform, comfortable using feeling. *For Alto / Tenor / Soprano Saxophone. Product parameters:Color: Black Type: Alto / Tenor / Soprano Material: Silica Gel Product Weight: 20 G / 0.71 Ounces Product Dimensions (L*W*H): 85*85*5 MM / 3.35*3.35*0.20 Inches Package Weight: 22.0 G / 0.78 Ounces Package Dimensions (L*W*H): 50*25*10 MM / 1.97*0.98*0.39 Inches Package include: Sax Mute Ring*1 Note: Please be sure to verify the size before you order the item. Please refer to the measurement. Tiny measuring error is allowable in normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.