Only Top Glides has a truly universal wheel kit so you know it can fit. Two big 5'' rubber wheels for easier navigation. Double rows of holes for compatibility with most walkers. Height-adjustable without tools. Exclusive Top Glides FlexFit ski glides fit the widest range of walkers and are extra-thick for greater durability.Kit converts folding 1'' walker to wheeled style.Height adjustable with 350 lb weight capacity.Big 5'' rubber sport wheels for easier navigation.Includes pair of FlexFit universal ski glides.