Dual Locking Hand Brakes: Two adjustable locking hand brakes provide immediate stopping ability and control. Simple push button parking brake. Ripstop Design Leg Pads: Comfortable knee pads with ripstop design make the leg pads more durable. The height can be adjusted without tools, and the picture grooves allow for comfortable leg placement. PVC Toothed Brake Sleeve: High-quality textured brake cover, more stable braking, better tire protection and less wheel wear. Extend wheel life. 8-inch Front Wheel: Wider 8-inch front wheels with grain for a smoother ride and more stable steering. Thickened Shock Absorber: Shock-absorbing design reduces bumps and increases load-bearing. More comfortable to use.