A slim, pen-shaped eraser from Japanese maker SEED, housed in a slender silver holder that slips into a pencil case or clips onto a notebook. The narrow rectangular tip lets you lift a single letter or a stray pencil line without smudging the words around it. Twist the eraser out as you use it, and swap in a new stick when it runs low — the holder is refillable, so it is built to last. Made in Japan.