Special lever lock prevents a person's fingers from “snapback” contact when releasing the wheel locks. 6" casters with soft-grip tires are ideal for indoor and outdoor use. Tool Free removable padded back rest for comfort. Plastic seat models come with Large 14" (W) x 12" (D) x 6" (H) front mounting basket. Padded seat models come standard with pouch. The pouch adds privacy and security to personal items. Manufactured with wrap-around welds providing additional strength and support. Handles are adjustable in height. Easy, one hand folding on plastic seat models. Limited Lifetime Warranty.