I purchased 2 of those clappers and I also have a wool pressing mat. Using them together, I love the results! I am keeping my eyes out for a sale on the clappers and will purchase 2 more of them. I love the wool mat also....I'm kind of sorry I didn't purchase a larger one (I got the 18" X 24").....I'd use the larger size up in a minute! Both good purchases in my eyes.