Root-beer-making kit offers a fun way to brew 2 gallons of creamy old-fashioned root beer at home Includes 1 bottle of root-beer extract, 2 packets of flavor crystals, and 1 packet of root-beer yeast Also provides 1 packet of no-rinse cleanser, 4 1-liter bottles with caps and labels, and 1 funnel Instruction sheet and fun guide offer easy tutorials; additional root-beer refill packs sold separately Measures approximately 7 by 12 by 7 inches NEVER BREW MR. ROOTBEER WITH BOTTLES OTHER THAN OUR OWN PRESSURE RELEASE CAPS AND GASKETS. STANDARD PET BOTTLES AND GLASS BOTTLES CAN EXPLODE FROM THE PRESSURE