Featuring a robust stainless steel construction, these stair climbing wheels are built to withstand heavy loads and frequent use. triangular design allows the wheels to easily navigate stairs, curbs, and uneven surfaces, making them an essential accessory for any shopping trolley. Features -Color:Silver -Material:Stainless steel, rubber -Size:24.00X24.00X5.00cm/9.43X9.43X1.97in -Recommended wheel bearing diameter: 7-8 mm. -Recommended axle length: at 40 mm, and there must be a axle groove at the end. -Stainless steel construction: the shopping cart features a stainless steel frame, ensuring durability and long-lasting use -Effortless stair climbing: the triangular wheels are specifically designed to help you climb stairs with ease, reducing physical strain -Quick wheel replacement: the can be quickly and easily replaced, allowing you to maintain your cart with minimal effort -Noise reduction: the bearings in the wheels provide smooth and quiet operation, enhancing your overall shopping experience -Snap-fit design: the stair climbing wheels can be attached without any tools, making the installation process simple and straightforward Package list: 2 x triangular wheels