Office chair wheels is one-wheel mode, not double-row wheel mode, This makes everyone look more beautiful and practical. Our heavy-duty chair wheels are made from strong steel fabric & precision ball bearings & transparent polyurethane material, this make the office chair more stable and firm, let everyone rest assured (our stem size is 7/16" x 7/8").. Our desk chair wheels replacement will never scratch, smudge or damage your floors. Of course, if the chair cushion must be used, the casters can also work well. Enjoy carefree and safe glide on wood, hardwood, laminate, vinyl, tile and carpet floors throughout the day.
. Mounting of the casters is very simple - without any tools needed. Just pull out the old wheel and push our new wheels into the socket, its not compatible with IKEA chairs and not either with some off brand chairs.