Road Runner RR Xpress Keyboard Porter 61 "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 plac" Thick foam interior protects and insulates instrument from temperature changes Roomy front pocket with additional accessory pouch "Adjustable, padded shoulder strap with metal hardware "