To date not much is known about Three Rings Brand pencil sharpeners. What we know is that these memorable pencil sharpeners were produced during China's cultural revolution period (1966-76) but we were not able to learn much else.
Nonetheless we're digging the mid-century packaging design and true to the 70s classic design pencil sharpener design.
Comes in a box of 23 pcs (one piece is sadly missing!) with the original box.