(NON-RETAIL, BULK PACKAGING) Doc Johnson School of Doc educational series come in a fun brightly colored composition theme notebook. 5 different colorful pamphlets. Each listed separately. Ask The Doc Materials Pamphlet 50 Pieces Bulk Refill. Materials Overview pamphlets. The Materials Overview pamphlet is an outline of the materials most used in the adult novelty industry. From plastic, ULTRASKYN to Silicone all the materials are featured to educate. Both School of Doc Materials pamphlets will be invaluable sources of accurate information, and will help toy shoppers choose products easily and wisely. Free educational materials. 50 pamphlets per refill. Sales tools and promotional tools. Dimensions 11.5 inches high, 5 inches wide, 3.5 inches deep. School of Doc – get schooled.