Description: Premium Material: Triangle frame wheel is made of stainless steel, which is wear resistant and ensures long term use, smooth and stable.Stable Design: Climbing wheels caster adopts a stable triangular structure design to provide enhanced stability when transporting goods.Easy Installation: The triangular wheels can be easily and conveniently installed or removed, directly replacing old or damaged wheels.Convenient Helper: Climbing shopping cart wheel is a reliable helper for easy transportation of goods, making your shopping trip easier and more efficient.Wide Application: Trolley caster is suitable for shopping carts, grocery carts, laundry carts, folding carts, stair climbing carts, trolleys, luggage carts, etc. (Note: Suitable for 7-7.5mm shafts, shaft lengths of about 39-42mm are available) Specification: Material: Stainless SteelProduct Size: 23cm/9.06inch, Single Wheel Diameter 9cm/3.54inch Package Includes: 1 Triangle Frame Wheel Note: Please allow slightly errors 1-2cm differences due to manual measurement.