Walk over virtually any surface with ease! Just add the Off-Road Big Wheels to your walker (not included) and you’re ready to tackle grass, dirt, and other rough terrain. The oversized heavy-duty 8” wheels with treads will give you a smooth walking experience. Also included is a pair of deluxe skis, which makes for easy gliding over uneven surfaces. The wheels are quick and simple to install with no tools required and will fit most standard walkers.