Snap Pad by Postalco, a design office based in New York and Tokyo.

The unique Snap Pad binding allows you to add any sheets to create a customizable notebook. Personal and work plans can be combined discreetly together, giving you a place to house all your tasks, sketches, fitness tracking, or whatever is important to you. Limit distractions and return to mindfulness with paper. The refillable Snap Pad, calendar, and accessories help us balance digital with paper to make each day more meaningful. Handmade in Japan.
Snap Pad™ Patented

(Quoted from Postalco website)

Brand_Postalco

size _ 16 x 23cm/6.3 x 9.1"

Country of Origin: Japan

[POSTALCO]

POSTALCO was launched in Brooklyn, New York in 2000 by Mike Ableson, a former bag designer. Currently based in Tokyo, the brand focuses on stationery, making various daily-use tools such as wallets, coin cases, backpacks, card holders, card cases, key holders, and rainwear in small workshops and craftspeople in Japan. The range of products is varied, but they are all designed to be used in everyday life, with a discreet design, practicality, and functionality.