PLASTIC SPROCKET CHAIN & GEARS
1/8″ (3.2mm) I.D., 26-3/8″ (670mm) long, 3 links per inch (25.4mm) Plastic Chain. Assemble your own plastic chain with 3 plastic sprocket gears. Easy snap together assembly add fun to the project and takes only a few minutes to complete. Gears have a 5/32Ó (4.0mm) shaft hole, and are a 10 tooth (27/32Ó (21mm) O.D.), 20 tooth (1-27/32Ó (47mm) O.D.), and 30 tooth (2-27/32Ó (72mm) O.D.). Use with furnished gears as a drive mechanism. May also be used as a gear rack by pinning down on a flat surface.