I love these craft catchers! I have them positioned at the top of my mat & at both sides. I make greeting cards & on occasion I have to make multiples of 10 or 20. So these catchers keep me organized. At the top I put the components fir the cards,at the right I sweep any little scraps that need thrown away, & to the left I put the finished card. I use them in other ways too. I really think they're a fantastic product!