Abstract: A transfer apparatus or mat comprised of a generally flat plastic base member having a plurality of ball members received in and extending outwardly from the bottom face thereof in a predetermined pattern. Ball bearing members are received between the ball members and base to facilitate ease of rolling ball members relative to the base. The mat or transfer apparatus provides easy transport means along a ground or floor surface for machines and other objects which are placed on the top face thereof. Means are provided for interconnecting a plurality of the mats in a side-by-side relationship to increase the size of the transfer surface as may be necessary when moving large objects.