Black Label is a lightning fast resin and goo cleaning solution for any metal, glass, or ceramic smoking utensil. As far as glass cleaner goes, Black Label is the best in the game. Just apply Black Label to any piece, shake, and let it soak for a few minutes before rinsing out in warm water. In no time Randy’s Black Label Glass Cleaner will have your piece looking good as new, and performing like the day you pulled it off the shelf.