I too have a Fons and Porter seam ripper. While it works well it drives my insane that it is perfectly round and rolls away and on to the floor. I put a little bead of hot glue down the side of it to stop the rolling.It occasionally peels off and I just reapply it. I also have a lighted one. Sounds wonderful but it isn't. Very awkward. The only thing it is good for is ripping black fabric. But my bright sewing light works better for that .