This wheel kit, consisting of two pivoting and two fixed wheels, allows you to move your four-legged friend's pet carrier quickly. The wheels can be easily fixed to the bottom of medium or large dog carriers that are designed for this purpose using the attachment clips included inside the package. They are ideal for various models in Ferplast's Clipper range: Clipper 4, Clipper 5, Clipper 6 and Clipper 7. The kit also includes a practical leash that must be attached to the door net of the carrier to allow easy mouvement.