A molded component consisting of a 28 tooth, 24.7 mm diameter, 10 mm face width gear and a 36 tooth 31.4 mm diameter, 8.3 mm face width gear. The 8 mm common bore is for a flatted shaft, and there is a small dog projecting from the 28 tooth side of the combo. Molded of black (glass-filled?) material. New, old stock. Supplier's #13797
