Check the listing for details. Bam Hightech 4.4 Adjustable 1002XL 4/4 Cello Case Black Carbon LN. Color: Black Carbon, Condition: Pre-owned. Listed at 2119.47 USD. Bam's Hightech 4.4 Adjustable 1002XL 4/4 Cello Case is constructed from a combination of high-performance materials. Its three-layer structure, with a core of AIREX, a rigid cellular material, this AIREX foam is pressed between two layers: a metalized ABS exterior, which is very resistant to shock, and a thinner PVC layer inside. The resulting composite provides the instrument with exceptional protection which has no equal on today's market. Features include fewer latches simplifying opening and closing, injected foam suspension at the level of the neck and endpin's blocks, well-placed handles, one or two padded anti-slip shoulder straps, for greater comfort and ease of carrying.Choose Black Carbon or Silver Gray.