Designed for upright, spinet and digital pianos, this Piano Dolly aids in moving your piano. These piano dollies come with a slip together design for studio, digital and upright pianos. Includes 6 - 3" locking casters and sturdy design. Assembles in minutes. Dolly extends to fit any size upright or digital piano. Click on the picture of the piano dolly to see an alternate photo of Dolly in use. Dolly Options include an anchor Toe Set for extra-secure fit and a configuration for upright pianos with no front legs.