I have something to share & this is something i have just learned. You may already know this but if not you may find it useful. I know I did. As most of you know we are re-doing our office we have taken out the carpet & put down flooring. I was worried that the computer chairs would scratch the floor so we went ahead & bought an area rug. Then I found out on Monday that there are special wheels for the pc chairs that are designed for hardwood or laminate even ceramic tile. I had no idea. Pic #1 if for laminate flooring & I have to say it is really quiet. Pic #2 is for the plastic mat that we had over top of the carpet for easier rolling. The ceramic wheels are white not grey with a black middle. So now we have the right wheels for the job & no worries about scratching the new floor. I have one of these chairs in my studio as well so now that I have learned there is a difference I will be changing that room as well. I hope this has enlightened those of you who like me had no idea there were special wheels for our sewing & pc chairs lol