It shall be unlawful for any person to knowingly sell, rent, or loan to a juvenile or to knowingly display for commercial purpose in a manner whereby juveniles may examine and peruse:

(a) Any picture, photograph, drawing, sculpture, motion picture film or similar visual representation or image of a person or portion of the human body which depicts sexually explicit nudity, sexual conduct or sadomasochistic abuse and which is harmful to juveniles, or

(b) Any book, pamphlet, magazine, printed matter however reproduced or sound recording which contains any matter enumerated in (a) above, or explicit and detailed verbal descriptions or narrative accounts of sexual excitement, sexual conduct or sadomasochistic abuse and which, taken as a whole, is harmful to juveniles.