Description:  【 Assistance Tool】: Designed to help you manage and maneuver your motorcycle in the event of a flat tire, ensuring you can continue your with ease 【Sturdy Construction】: Made from metal steel plate and wear resistant rubber wheels, this Motorcycle  Moving Trailer is built to withstand frequent use and provide reliable support for tires up to 15cm in width, and can support a weight of approximately 150 kg  【Versatile Compatibility】: Motorbike electric bike flat tire trolley suitable for a variety of vehicles including motorcycles, electric bikes, and tricycles, making it a versatile addition to your emergency toolkit 【Features】:Flat tire booster emergency tire roller tool with  easy turning capabilities, making uphill and downhill navigation more flexible,with multiple precision bearings and  auxiliary wheels, it ensures smooth   【Compact Design】: Emergency Tire Roller Tool is compact for easy storage and portability Size Chart: Wheel Diameter: 9.8cm/3.86inch, Width:3.1cm/1.22inch Universal wheel diameter: 7.4cm/2.91inch Plate  Width x Thickness: 15cm/5.91inchx0.25cm/0.10inch Package Includes: 1 Flat Tire Booster  Note: Please allow slightly errors due to manual measurement and different monitors.