You can request a free sample of Shout® Color Catcher®. Just fill out the form and hit submit and your free sample should arrive in just a few weeks.
I have these in my laundry room. They have come in handy when I need to wash a few items, which always seems to include something white and something red. I toss one of these in and I can just to one load without worrying about the colors running. If you re leery as to whether they work or not, I am here to say that they do!