4 spinner wheels rotate 360 degree, providing effortless maneuverability and a smooth glide in every direction. Each case also features a telescoping handle with multiple stops to support a comfortable roll for users of different heights. Built with a durable polyester fabric and water-repellent coating to resist stains and abrasions. Each case also features rugged skid guard and corner guard protection of high wear points. Main body compartment includes tapered expansion capability to increase capacity when needed. Ergonomic high-tensile-strength zipper pulls provide effortless and secure opening/closing of all exterior pockets.