Smooth and wear-resistant rubber wheels These 12 cm rubber drive walker wheels are ruggedly designed for regular, everyday use. The stiff rubber construction allows users to easily maintain a smooth roll, even over irregular surfaces, while the rubber sports wheels are non-marking and suitable for indoor use. Durable glide caps Durable glide caps securely fit on the rear legs of any walker model for smooth movement over any surface. Easy-to-Install walker accessories These walker parts are exceptionally easy to install and use. Simply slide the metal bar into leg columns of the existing walker until the metal nub clicks into place. Choose from 8 different height settings spaced 2.25cm apart for the proper fit. And there is no need to use any tools to install it. Converts Most Traditional Walkers these versatile walker wheels function as walker replacement parts as well as accessories for walkers for those who wish to convert a traditional walker into wheeled-style for enhanced mobility. The durable 12 cm rubber wheels glide smoothly over most surfaces. This walker wheels is a great accessory for walker! Specification: Walker Wheels Material: Aluminum, rubber Length: 32 cm Width: 12 cm Net Weight: 534g Pair Color: Silver Ski Glides Material: Plastic Length: 7.5 cm Width: 3 cm Net Weight: 48g Pair Color: Black Package Included: 1 Pair (2 Pack) x Walker caster wheels, 1 Pair (2 Pack) x Ski glides[Service]: Walker Wheels easily transform most standard, non-rolling walkers into wheeled-style walkers, giving users improved mobility for everyday activities. We are committed to providing quality services to our customers. If you have any question, please feel free to contact us!. [Easy to Install]: No tools are needed to easily install walker wheels and ski glides on walkers. Ski glides are durable and quick to install. [Height Adjustable Walker Casters]: 8 levels of adjustable height, adjusts from 12 cm to 30 cm in 2.25 cm increments for personal comfort. [Lightweight Sturdy]: Each wheel has a diameter of 12 cm and is made of lightweight and sturdy aluminum, providing strong support and stability for the walker while remaining lightweight and easy to use. [Universal]: Walker wheels are designed to fit most walkers, 12 cm caster wheels let you easily navigate over uneven surfaces. The easy-glide wheels smoothly roll over carpet, pavement, or grass. They're also non-marking and you won't have to worry about scuffing your floors.