Triangular wheels for trolley - wide range of uses: adapted to different occasions, such as shopping, transporting goods and even walking. Cart wheels for climbing stairs - ergonomic handle: the handle is designed to be comfortable and easy to carry. Hold, even for long periods of time. Cart wheels - durable: using a special triangle racing wheel design can effectively reduce the wear and tear when climbing stairs. Cart wheels vegetables - special triangular wheel design can effectively reduce the wear and tear when walking up stairs. Cart accessories - wheel design: improves the stability of the cart. overall effect of the cart and reduces noise during use.