This All-Terrain Knee Walker is great for use indoor & outdoor. Built with functionality in mind with a removable basket and an easy folding frame for transport. This model has 2 different folding points, making it our most compact knee walker yet. 12" pneumatic tires are used to ensure a smooth ride outdoors. Contoured knee pad to ensure comfort for patient during use. Our All-Terrain model has the best turning radius in the industry, allowing for a truly indoor/outdoor product without compromise. We understand how important durability is for these products, which is why we use premium materials in the knee pad, brake cable, and wheels