If you bought a crunchy snow fizz slime, be sure to buy this extra bag! Not only does it allow you to add even more crunchiness to your new slime, but it can be saved to be added later when your slime starts to lose its crackle, which will make it good as new. I added half to the bag to my new Christmas Tree slime and it's my new favorite slime ever! I love how every movement comes with a symphony of millions of little crackles!