Crossrock Alto Saxophone Case-Fiberglass Hardshell with Backpack Straps in Black Compact shape with super strong fiberglass exterior perfect for most regular alto saxophone. Safe to be kept in the storage room of any airplane. Neoprene anti-slip backpack straps with strong metal buckles. Crossrock sturdy vinyl handle and 3 metal latches with key. Thick padding inside with 2 accessory pockets and rest space for crook.