Premiere Props · Sale 28576 · Lot 758 Adler 310 12" Free Arm Walking Foot Photographs: © Premiere Props Lot of 1 Adler 310 12" free arm walking foot. Can sew through thick layers of leather and other heavy materials. 220 volt. ‹ Lot 757 Industrial Singer Sewing Machine Lot 759 › Mitsubishi 12" Computerized Walking Foot