The products in this category are for sale to instructors only. You will not be able to view prices for any of the items in here if you are not a PSI instructor. If you add any of these items to your cart and are not in the system as an instructor, this portion of your order will not be filled. If you are a PSI instructor and can not see the prices of these items, or you would like to know more about becoming a PSI instructor Contact PSI.