Each package contains: One 5lb bag with grain and manure loving CVG substrate, two nitrile gloves, 1 sterile alcohol prep pad, mushroom grow instruction. Substrate Blend At the heart of our grow bag lies a well-balanced mix of coco coir, Vermiculite, Gypusm and Galnut Micronutrients. This golden ratio provides good water retention, breathability, and nutrient content. Grain Blend Our primary blend is 1 part rye 1 part oats and 1 part red milo. This diverse mix guarantees a vast array of essential nutrients and minerals, creating a resilient and vigorous mycelial network. Galaxy Nutrition's Guarantee Our mushroom grow bags are a product of extensive research and passion for mycology. We stand behind the quality of our products and offer dedicated customer support for any questions or guidance needed.