Ktaxon Adjustable Rolling Stool with Back for Medical Lab, Black

it is very good quality for the price. it was easily assembled and the perfect size for my needs

I've been using this stool for a couple of days now and other than the fact that the naugahyde back is warm I'm completely happy with the product. However assembly instructions are pretty basic. Step 1) The casters needed a bit more of a push than I was expecting, they push straight in with a little effort. Step 2) Note that the top of part E actually goes into the bottom of part H, once there it should be a tight fit and not slide up and down. Getting everything lined up here was the most aggravating part of assembly. Get both the screws in before you tighten them. Step 3) Pretty much as diagrammed. My holes were off by 1/16" (or less) so, again, get all the screws in before you tighten them. Step 4) Yep, the only thing holding the back to the seat is that on knob. We'll see how that works over time. I have a bad habit of leaning back and my two previous stools had the back welded to the frame ... didn't last long. Step 5) Again, the only thing holding the seat to the bottom portion is gravity - obviously there's a catch in there since I can lift the stool by the seat.