Usage Tips:HAOYI Silent Bearing Wheel:This shopping cart wheels have a special texture on the exterior, has a certain shock absorption effect, no abnormal noise, and can be used with confidence. Hotwheel Hub Design:Theplastic core foam wheels adopts the hot wheel design, simple and beautiful, the color: black + white, which can match most color shopping carts. There are 2 in total, enough to meet your needs. Durable EVA Material:The shopping trolley wheels are made of EVA material, which is durable, wear-resistant and has a long service life. Compared with other wheels, it has a thicker wheel periphery, good stability, strong bearing capacity, and a single tire bearing 10KG. Size: Shopping wheel diameter: 16cm/6inch, wheel thickness: 3.5cm/1.37inch, opening diameter: 0.8cm/0.3inch.With it, you can make your shopping easier and more enjoyable, and it's much easier to pull up steps and stairs. Wide Application:The replaceable trolley wheels are suitable for fixing on shopping trolleys, station trolleys, travel luggage trolleys and children's bicycle trolleys. Specifications color: whiteblack Material: EVA Size: 16cm/6inch Weight:180g Packing Includes:2 * Replacement Spare Wheels