FUNCTION FIRST REFERENCE : PEAK3028SN WEIGHT: 5 lbs. INTERNAL MEASUREMENTS : Bb Clarinet:Upper Joint: 8.7 in. / 22 cm.Lower Joint: 10 in. / 25.5 cm.Bell: 3.9 in. / 10 cm.A Clarinet:Upper Joint: 9.4 in. / 24 cm.Lower Joint: 11 in. / 28 cm.Bell: 4.1 in. / 10,5 cm. Molded on and fitted best for Buffet Crampon RC Clarinets. EXTERNAL MEASUREMENTS : Total Length: 18.5 in. / 47 cm.Case Width: 14.6 in. / 37 cm.Case Depth: 5.9 in. / 15 cm. INSIDE FEATURES : Made for Bb & A Clarinet. Internal instrument cradle made of high density and resilience injected polyurethane foam covered in black non-invasive velvet fabric, protecting the instrument against shock and unwanted thermals. OUTSIDE FEATURES : Made with water-resistant Cordura fabric. Front accessories pocket . Sturdy side carrying handle. Integrated ergonomic back cushion for comfortable backpack style transportation. Fully integrated backpack straps. High quality orange lined zipper. Side net pouch for water bottle.