• 40mm omni-directional wheel, supports 10mm axles.
• In addition to forward and backward, omni wheels allow your robot to slide laterally by use of rollers around the circumference.
• The hub is yellow and the rollers are white.
• The weight of the wheel is approximately 0.4 ounce.
• The width of the wheel is 14mm (or 24mm including the axle hub).