The RR Xpress Keyboard Porter Sm88 is a slim keyboard transportation solution for 88-key synths and keyboards with a super tough, ballistic-quality exterior and interior. Giving you extra protection on the outside, this rolling case has durable, damage-resistant side-rails. Internally, it has a thick foam interior for even more protection, not only from bumps, but from temperature changes as well, which could effect the more sensitive electronics. The Sm88 keyboard case also features a roomy front pocket with an additional pouch for your cables, adapters, and other accessories. To make your transportation easier, the RR Xpress Sm88 has several options. It comes with an adjustable, padded shoulder strap with metal hardware for when you have other things to carry. However, you can also carry the case in one hand using the tough, rubber handle with its comfortable, contoured grip. It also has built-in wheels with an extra rubber handle optimally placed for more balanced rolling. Super tough, ballistic quality exterior and interior Thick foam interior protects and insulates instrument from temperature changes Roomy front pocket with additional accessory pouch Adjustable, padded shoulder strap with metal hardware Tough rubber handle with contoured, comfortable grip Durable side-rails for damage-resistant transport up and down stairs, stages, etc. Built-in wheels make moving your keyboards easy Extra rubber handle optimally placed for balanced rolling