It's not just a Panel Cart, it's a Tool! Bars are designed with multi-point disconnection for easy transformation and storage. Our "3 Tools-in-One" design gives you the option of turning your Panel Cart into a Dolly, Platform Truck and an Inter-Connected multiple Dolly platform helping to move anything with efficiency and safety. The Snap-Loc Panel Cart crushes all competitors panel carts with its many unique features. 1,500 lb capacity with super heavy duty 6 inch tall All-Terrain casters allow you to move heavy loads with little effort over all types of surfaces. When needed use the Caster Brakes to firmly hold your load on hills. Patented 4 sided E-Strap attachment firmly holds cargo to Dolly frame allowing you to stack more without sacrificing safety or protection of cargo. The heavy duty steel bars are protected with a durable heat treated powder coat. Best of all, the Snap-Loc Dolly is Made in the USA!