the sandpaper dots are the best!!!! those clear thick dots are just that.....thick......they make my rulers ''wobble''. buy at Joanns when they have a 50 per cent off sale. about $3., so you can use plenty on each ruler. the downside of the sandpaper dots.....you can't slide your ruler off your fabirc you have to lift it by the edge or get a suction cup handle
jodi in leavenworth