The Digital Juice Wheel System is a highly portable,the  Two of the wheel trucks use a single center swivel to guide the dolly on one side of the track while the third sits on the opposite track and utilizes a 3" floating pivot arm, giving you the ability to track around corners and change directions as many times as you want, while also compensating for any deviation in the track spacing. 

The Digital Juice Orbit Dolly Wheel System includes a handy carry case that makes it simple and convenient The toolless assembly also means you can quickly remove the existing wheels from your  Dolly or  Orbit Dolly, 

For video please check this youtub  link :  https://youtu.be/YhwxcU4xS8Q