This is a set of two Small Platform Mover Dolly units from Mount-It!. They each carry up to 220 lb loads and are designed to evenly distribute the weight of the load and make the load feel lighter. They measure 16.3 x 11" each and stand 3.3" off the ground on built-in wheels. Multiple units can be connected together to support large loads, such as furniture.
UPC: 810041733795