Reunion Blues G- Series trombone Bag, model 504, fits instruments until 10- 1/2" bell diameter, black leather (29), removable bell protector, hide- away backpack straps, padded block and kit pouches, padded rigid slide sleeve, durable leather exterior, unique double- foam system, soft fabric lining, inside dimensions: 36" length x 8.5" height x 8" width x 11" bell, weight: 10.7 lbs.