DescriptionOrigin : CN(Origin)Material : MetalRecommend Age : 4-6yCertification : NONECharacteristics:1. Manufacture in plastic, non-toxic and harmless. Can be used repeatedly, as a toy car model, small and durable.2. Suitable for the development of children's assembly thinking, light and portable.3. 10 tooth design, gear and toy car axle surface can achieve 90 degree rotation.Product name: Plastic gearboxType: single speedFit for: for DIY toys engine gearbox main shaftTeeth: 10Modulo: 0.5Total Diameter: 6mm / 0.6cmthickness: 5mm / 0.2inchfor shaft diameter: 2mm / 0.2cmMaterial:Plastic materialColour: WhiteWeight: 3g;Package includes:1 set * 20pcs 10-tooth plastic gearsOnly the above package content, other products are not included.Note: Light shooting 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.