Product Name: Shopping Cart Tie rod material: aluminum alloy Wheel material: double bearing wear rubber wheel Applicable environment: shopping, grocery shopping, etc. prompt: 1. Please check the size before purchase. Due to manual measurement, there will be an error of 0-3cm. Please understand 2. Items other than products are not included in the product photo 3. Please note that due to the different monitors, slight chromatic aberration may occur, please understand. 4. The above data is for reference only, the size is manual measurement, each variable may be different, please refer to the actual product, thank you. 5. If you find any problems with our products, please feel free to contact us by email and we will resolve the problem as soon as possible. 6. Welcome your sharing and feedback so that we can provide you with better products and services.