Product description Key benefits Quick, tool replacement: remove existing wheels and insert these locking casters in seconds to restore mobility or lock furniture in place. Quiet and floorfriendly: wheels feature a thick, shockabsorbing, nonslip surface that reduces noise and helps prevent scratches on hard floors. Improved stability: builtin locking function keeps chairs and furniture stationary when needed, reducing unwanted movement. Versatile replacement fittings: designed as sustainable replacement parts for a variety of furniture items, helping extend the life of chairs, sofas, shelves, and storage racks. Features and performance Easy installation: simply turn the furniture over, pull out the old casters, and push in the ones until they seat securely. Silent rolling: wheel material and construction minimize noise during movement for a quieter workspace or home. Durable and shockproof: thick wheel base absorbs impacts and smooths movement across uneven surfaces. Nonslip contact: wheel tread provides grip to reduce sliding on hard floors while still allowing smooth rolling when unlocked. Locking mechanism: engage the lock to hold the furniture in place or release for normal rolling. Compatibility and use Designed to removable casters on most office chairs and similar furniture with removable stems or sockets. Suitable as replacement fittings for office desk chairs, living room sofas with removable wheels, shelving units on casters, and storage racks. If your furniture uses removable caster stems or sockets, these casters are likely a compatible swap. Verify stem type and size on your existing casters before . Installation steps 1. Lay the chair or furniture on its side or back. 2. Pull out the existing caster from its socket. 3. Push the caster into the socket until it is fully seated. 4. Test rolling and engage the lock to confirm secure installation. Typical applications Home office: worn wheels on an office chair to reduce noise and protect hardwood or tile floors. Living room furniture: swap in casters for sofas or side chairs that need smoother movement or a locking option to prevent sliding. Storage and utility units: upgrade shelving or storage racks with shockabsorbing casters to improve mobility and reduce floor damage during repositioning. What to expect A straightforward, practical replacement that restores mobility, reduces noise, and provides a locking option for stability. Check your current caster stem type and size for compatibility before installing.