Durable Construction: Constructed from sturdy, rust-proof steel, each dolly cart supports up to 1,500 lbs. This ensures it can handle heavy-duty tasks without bending or deforming, making it a reliable choice for all your vehicle-moving needs Smooth & Secure Movement: With 3.5-inch rolling bearing universal casters and locking wheels, this car dolly ensures smooth, secure movement. Enjoy full control over vehicle positioning, plus an instant-lock foot brake for added convenience and safety during maintenance Enhanced Safety Design: The concave platform boasts a dense diamond pattern that firmly grips vehicle tires, enhancing friction and minimizing the risk of slips or falls. This smart design prioritizes your safety while safeguarding your vehicle Easy Operation: Using this car wheel dolly jack is incredibly easy. Simply lift the car tire with a jack, then position the wheel dolly underneath and secure the wheel in place. Repeat this process for each tire, and you’ll be all set in approximately 10 minutes Versatile Application: This tire dolly is perfect for various vehicles, including cars, trucks, trailers, and motorcycles. Whether in a body shop, towing company, or your garage, these car rollers provide the versatility and reliability you need