Item model number ‏ : ‎ GBELLCVR0809BK

Wind Instrument Double-Layer Cover for Bell Sizes Ranging from 8 to 9-Inches. Measure Your Bell Size To Ensure Proper Fit
Covers Bell Opening of Instrument to Greatly Reduce the Spread of Aerosols and is Made to Meet Performing Arts Aerosol Study Recommendations
Elastic Closure & Cord Lock Keeps Mask Secured to Bell Opening
Breathable Design with Little to No Back Pressure or Acoustic Loss During Performance