Did they change their design?
Custom Craftworks Solutions Swivel Stool without Back
I bought this chair because I had used one in the past. I also bought it for the thickest cushion on the market. It does have that little drop down when you sit that makes you feel like you are going to fall, that did not used to be there, may they changed there patent? It still provides the comfort I am used to though, just don't like the drop down