The SKB SKB-5820W 88-Key Keyboard Case with Wheels has a rugged roto molded exterior. Puzzle Foam ends in the interior shape to fit your board in total safety. Meets ATA Cat 1 specs as an airline shipping container and is fitted with tough, lockable security latches. Built-in wheels. Bumpers protect exterior fittings. SKB is our premier supplier of instrument and gear cases. SKB builds their products with military-spec, ultrahigh molecular weight polyethylene and premium hardware. All SKB hardshell cases are unconditionally guaranteed forever. That means if you break your SKB 88-Key Keyboard Case, SKB will repair or replace it at no cost to you.