Check the listing for details. Mushroom Growing Chamber Kit w/ 10lbs sterilized substrate 3lbs sterilized grain. Condition: New. Listed at 139.69 USD. Kit is new and unopened. Quick and free secure shipping. Actual item pictured. This reusable and durable mushroom fruiting chamber made by Max Yield Bins is the perfect place to start your indoor mushroom cultivation journey. It’s easy, fast, and doesn’t take up much space or require high-tech humidity or ventilation systems. Simple and effective solution for growing mushrooms indoorsControl air flow circulation and humidity retentionDurable, tight-fitting latches keep the lid sealed to the baseCustom light-blocking base prevents mushrooms from growing on the sides or bottom of your mushroom fruiting chamberThe design allows for the top and bottom to be stacked together for transport and storageOverall assembled size: 22.5″ (L) 15.5″ (W) 12″ (H)Made in CanadaStart growing your own mushrooms right at home with this all-in-one mushroom grow kit! It includes everything you need except the spores to start your mushroom cultivation journey.What the all-in-one mushroom grow kit includes: A mushroom fruiting chamber3 lbs of sterilized grain10 lbs of sterilized substrate