Bag Cart With Tri-Wheels purple. Honey-Can-Do CRT-02894 Large Rolling Knapsack Bag Cart with Tri-Wheels for Steps, Orange. Polyester knapsack bag with tri-wheels for curbs, steps and elevated surfaces. Ergonomic comfort grip handle for easy transport. PVC coated wheels are smooth rolling and quiet, will not scuff or damage floors. Knapsack quickly secures contents of bag with black drawstrings. Balance bar and tri-wheels allow ba