Bests & Worsts Reviews from Amazon

*WARNING* DO NOT USE ON LEATHER or nice fabric such as an office chair. I purchased this to add more support and just a bit of height to my $400 La-Z-Boy leather office chair. The bottom has a metal zipper lining and metal zipper with sharp edges. After just 2 days of use I noticed a strange wear mark on my brand new chair. I had to sew a flap of fabric over the zipper handle or I would have ruined a $400 chair in about a week. Very poor design, it's so easy for them to make a flap to tuck the zipper in to.