I made myself a FM slider. Went to Bed Bath & Beyond and purchased a "Chef'splanet Non-stick Ovenliner" It measures 23" x 25", twice as long as purchased sliders.This could be cut in two and either share with a friend or keep as spare. I kept mine large as I have a machine table that lowers my machine. If I find that is is to large I will split in two. I then put the rubberized shelf line on the outside of the slider and around the needle hole, on the bottom side of slider to keep from moving. I have a lap quilt almost ready to FMQ, so I am excited to use it. The price was $19.99, and I had a $5.00 off coupon. The Supreme slider sells for around $30.00 plus shipping. The SewSlip sells for about $27.00 plus shipping and they are half the size.