How much does this cost to the nearest dollar?

GoJak ZENDEX Tool Model G6313, Wheel Dolly Pair (Left and Right)
It's a real pain to move around a race or old car in your shop. They are hard to move by yourself, or you have to get out a floor jack, lift each end and put dollies under each wheel. These GoJaks simply slide in from the side and jack up each wheel using just your foot. This allows you to handle the job fast and by yourself. Kit Includes (1) GoJak G6313 Car Wheel Dolly Jack, 13 Inch Wide Tire, Right Hand. (1) GoJak G6313L Car Wheel Dolly Jack, 13 Inch Wide Tire, Left-Hand. Easily position locked, blocked, or disabled vehicles with the Go

Price is $540.00
Price: $539.99