Ships in a plain brown box with no indication what is contained within. More grain more yield. Most “large” grow bags only give you 1 Quart or less of grain which is roughly 1 pound, then they make the bag look large by adding 3-4 pounds of compost. Compost is cheap 1/20 the price of grain, and is mostly water weight. The yields from those bags are very low. Our large grow bags contain 3 quarts or 3 pounds of grain, 3x as much as the competitors. That means significantly higher yields because of the higher nutritional content of grain over compost. Don’t fall for a cheaper price, it’s an inferior product. Whether you are new to the hobby or an experienced veteran, these all in one mushroom grow bags are the perfect choice. Achieve higher success rates, great yields, and have an easy user experience.Buy two bags per 10ml spore or liquid culture syringe (not included)Grain spawn and compost in the same bag, 3 pounds of eachYield up to 4 ounces of dried mushroom per bagThe easiest way to grow mushrooms at homeNo need to transfer grain to substrate, reducing chances of contaminationGreat for dung loving species