Ok ladies i am a gagdet girl and I bought it and I tried it once and took it off after i tried to sew one strip. Was not impressed . It is a harder stiff plastic and is suppose to stick to your machine bed. Ok but it seems to stiff and i spent more time making sure the guide was against the material so i could sew the perfect 1/4 . Was not worth the money even if it was under 10.00 still that money i could have bought a yard of material ..