36" x 18" or 40 breeder enclosures. Terra Aranea is the #1 bioactive substrate for all tarantulas, scorpions, vinagaroons, spiders and other inverts. 

Included with this kit is: 

x1 36 quart  Terra Aranea bioactive substrate - Great for tarantulas and holds all tunnels and burrows. Great for arid or tropical.

x1 6 quart Chilean or New Zealand AAA Sphagnum moss - The Dude's choice, depends on availability. 

x1 Beech/Red Oak Leaf Litter 6 quarts

x1 3 quart Cork Bark Pieces 2 quarts 

x1 36 quart BioShot - Perfect shot for soil amount.