These black are for replacing the worn-out wheels on your foldable grocery cart. Designed to handle the rigors of climbing stairs, they ensure smooth and effortless movement. Whether you're navigating through a crowded supermarket or hauling groceries up to your apartment, these wheels provide the durability and reliability you need. Features - Color: Black -Material: - Size: 16.50X16.50X4.50cm/6.48X6.48X1.77in -Shock absorption: these wheels offer shock absorption, making them ideal for shopping carts and ensuring a ride over various surfaces -Smooth operation: designed for smooth and efficient rolling, these wheels minimize friction and resistance, providing an effortless shopping experience - materials: made from rubber foam , these wheels are highly and wearresistant, ensuring reliability -Versatile use: suitable for supermarket shopping, market purchases, and transporting goods, these wheels meet diverse needs and are highly practical -Easy installation: these wheels are easy to install and built to last, making them for shopping carts, station trolleys, and travel luggage carts Package list: 2 x trolley shopping cart wheels