Easy to use pre-poured potato dextrose agar Petri dishes (PDA plates) for the detection of yeasts, molds, and other fungi. NO pouring your own plates, which is time consuming and NO autoclaving required. Your plates will arrive in excellent condition or we will replace them no questions asked. This is a great science kit to learn microbiology and great for laboratory use. These plates are excellent for mushroom cultivation. Each plate is coated with a thick layer of agar perfect for fungal growth! See improved performance compared to other products. The thick agar surface prevents cracking and drying of the plates as seen with other kits. 100% money-back guarantee if you don’t absolutely love your set.