For 25 years I had a hand dyed rag rug business. The Shout color catchers saved my bacon many times. I could never buy enough of them. Interesting about not being able to be imported to Canada because of the chemicals. I thought it was a secret formula. I thought they were made in Ireland. What ever it was, it worked very well. I had one designer who wanted a whole new rug because of bleeding. So I had him send back the original rug and I washed it with 12 color catchers at a laundromat. I don't think I ever lost a color catcher, but all 12 of them were weird colors. The rug came out fine and I finally told him about the color catchers.