The PATROL is a stable rollator made from soft shock absorbing material with four over-sized, 10-inch wheels, making your walk outdoors a breeze. The tires are a cushioned, quality rubber tire. The Volaris PATROL is the same rugged design of the SMART except it has the bigger, slightly softer tires. When you need a walker with big wheels the PATROL is for you. Due to the larger wheels, the frame from back tire to front tire is slightly longer (32 inches compared to 29 inches on the SMART).