Triangular wheels for trolley - wide range of uses: suitable for various occasions, such as shopping, transporting goods and even hiking. Trolley wheels for climbing stairs - ergonomic handle: the handle is designed to be comfortable and easy to grip, even for long periods of time. Trolley casters - durable: adopting a special triangle running wheel design, can effectively reduce wear when climbing stairs. Vegetable trolley wheels - the special triangular wheel design can effectively reduce wear when running stairs. Trolley supplies - wheel design: improve the overall stability of the trolley and reduce noise during use.