I too have found these at my local dollar tree. I orginally bought 2 (1 for computer chair & 1 for sewing chair). They really work and they r AWESOME!!! and all for $1.00. What a DEAL. The next time I went to Dollar Tree, I bought 6 more so when the ones I am using fall apart, I have a stash. LOL LOL LOL Have a blessed day.
debra