Mecanum omnidirectional wheel Mecanum wheel roller can move forward or backward like a traditional wheel, allowing sideways movement, , front and rear axles in opposite directions, supporting 45 rotation, and can be flexibly moved to the destination even in a small space. DC reduction motor Working voltage: DC 3-6V Rated voltage: DC 4.5V No-load current: 80mA No-load speed: about 200 rpm, measured 180 rpm Reduction ratio: 1:48 Colour: As Shown Material: Aluminum Alloy Package Contents: 1 set of DIY obstacle avoidance car chassis (The shipment is in separate parts, and the styles of accessories vary from batch to batch) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.