Skis not includedAdvantages Protects garage and driveway pavement Makes the travel to the restaurant or the gas station easier Makes it easier to drive the snowmobile back in the trailer Allows you to take the ferry Safe riding on bridges and roads Makes driving easier, especially while cornering or driving on hard surfaces Minimizes wear on guide rails and skis Works as well when you drive forward than when you drive in reverse No modification on the snowmobile's original parts Automatically retracts on snow-covered trail In just a few seconds, you can engage the Rouski mechanism and keep on riding