The Drive Medical Swivel Wheel with Lock and Two Sets of Rear Glides can be locked for fixed wheels or unlocked for swivel wheels. The 5" casters with rubber wheels and two rear glide caps, allow walkers to roll easily and smoothly over irregular surfaces. Can be locked for fixed wheel or unlocked for a swivel wheel|Rubber wheels allow walker to roll easily and smoothly over irregular surfaces|Allows for 5 adjustments|Comes with rear glide caps and glide covers allowing use on all surfaces|350 lb Weight Limit