Three Extra Large Magic Mushroom Grow Kits. Buy three XL magic mushroom grow kits with active mycelium for a low price. The XL Magic Mushroom Grow Kits contain almost 85% more substrate than the regular grow kits. More substrate means more mushrooms.Get a Magic Mushroom XL combi pack and pay less than just ordering three single XL Grow kits. You can choose your own strains from the available stock. If you want 3 different cubensis or three of the same. You can do it!  Order your XL combi pack today.XL Magic Mushroom kit is available in Amazonian PES, B+, Cambodian, Colombian, Mazatapec, Mexican, McKennaii, Red Boy, Thai, and Golden Teacher