ProX X-STGX6 Universal Portable Rolling Dolly for 4'x4' and 4'x8' Stage PlatformsThe ProX X STGX6 Rolling Dolly is a universal transport solution designed for 4x4 and 4x8 stage platforms. With heavy duty wheels and reinforced framing, it makes moving staging equipment efficient and safe. Built for rental operations, it reduces labor time while ensuring reliable handling. Key Features and Benefits Universal Dolly: Fits 4x4 & 4x8 stages. Heavy Duty Wheels: Smooth transport. Reinforced Frame: Strong construction. Portable Design: