Models 31 mm Omni Wheel 5 160 0 136:1 Sub-Micro Plastic Planetary Gearmotor 6Dx19L mm 2 68 0 Omniwheel 30 mm Diameter 4 101 3 Vertical Bracket for gearmotor N20. 7 215 1 Bracket for 136:1 Sub-Micro Plastic Planetary Gearmotor. 3 69 0