Office chair wheels set of 5 chair caster Wonder Wheels universal fit UNIQUE SCRATCH FREE DESIGN - Stop damaging your floors with low quality desk chair wheels. These replacement rubber chair casters wheels are guaranteed not to scratch or leave marks on any surface including tile, carpet, and hardwood floor. Great rolling chair wheel for hardwood floor and all other floors.Youll just love these casters for chairs.Get these casters for office chairs and you don't have to be stuck to your office chair mat. UNIVERSAL SIZE - Allows these original office desk rolling chair wheels to be used on almost any chair. Don't settle for the cheap chair casters set that comes on your expensive office desk chair, upgrade to high quality antique chair casters rubber chair wheels that will last for ever! NOT COMPATIBLE WITH IKEA CHAIRS, EASY INSTALLATION no tools required.(stem size 7/16 x 7/8) ENJOY SMOOTH & QUIET GLIDING - These rubber replacement office chair wheels will relieve the stress of rolling on your office chair. Never get frustrated again. Let smooth gliding be the new normal! Just glide from lower to higher surface with ease. Roll from hardwood floor to carpet with ease. Get rid of the squeaky plastic and metal office chair casters.Get rid of your office chair mat. LIFETIME WARRANTY!! You can purchase these antique caster wheels with PEACE OF MIND, backed by our satisfaction guarantee! If you are ever unsatisfied with your purchase we will refund your money no questions asked!. Keeping our customers pleased is our number one goal. Patent pending on these office chair casters. Made in the USA and imported. HIGH QUALITY - The caster wheels heavy duty rubber design supports up to 650 lbs as a set of 5, the strongest office chair wheels on Amazon. (If used as a set of 4 replacement caster wheels then supports 520 lbs).Dont settle for the junky chair casters wheels that looks the same get the brand name that will last you a lifetime!!!