What is ケースａｎｄケース（４分割）?
Meet one of Daiso Japan's quietly legendary storage solutions — the Case & Case (4-Division), priced at just ¥110 (roughly $0.75). Made in Japan, this compact organizer measures 18.1cm × 9cm × 2.8cm, making it slim enough to slip into a drawer, bag, or desktop tray without taking up precious real estate. At first glance it looks simple, but the design is genuinely thoughtful.
The outer shell is crafted from polypropylene (PP), rated for temperatures between -20°C and 100°C — meaning it won't warp near a warm laptop or in a chilly car glove box. Inside sits a removable styrene resin tray (rated -20°C to 70°C) that divides the interior into four equal compartments. The removable tray is the magic touch: lift it out for a quick clean, or swap it into another compatible case entirely. The translucent, minimalist aesthetic is very much in line with Daiso Japan's refined product design language.
Daiso officially recommends this for storing handmade parts and small accessories — think sewing notions, beads, earring backs, or nail art pieces. But as you'll see below, creative users have taken it far beyond its original brief. One item, one price point, endless configurations. That's the Daiso promise in a nutshell.
Source: daisonet.com
How to Use It — Hack Ideas
Primary Use — Small Parts Organizer: The four-compartment layout is ideal for tiny items that tend to scatter: bobby pins, guitar picks, pill doses, USB adapters, or earbuds. The low-profile depth (2.8cm) keeps things visible at a glance — no more digging through pouches.
Hack #1 — Pocket Tissue Protector: Slip a packet of pocket tissues into one half of the case and close the lid. The rigid PP shell shields tissues from getting crushed at the bottom of your bag — a problem every bag-carrier knows too well. Bonus: the remaining compartments hold a lip balm and a coin or two. Instant bag organizer kit.
Hack #2 — Board Game Insert / Card Game Sorter: As spotted in the wild by a creative user, the white inner tray can be lifted out and used as a standalone insert inside a board game box. Slide rule cards under the tray, store tokens in the compartments above, and the whole thing stacks neatly for vertical storage. No more exploding game boxes the moment you open them. For tabletop hobbyists, this case is an absolute sleeper hit.
Both hacks require zero modification — just a little lateral thinking. That's the hallmark of a truly versatile Daiso find.
Reviews & Verdict
Community reception for this case skews enthusiastically positive, especially among craft lovers, stationery fans, and tabletop gamers. Users frequently highlight the removable tray as the standout feature — it elevates this beyond a basic plastic box into something genuinely modular. The made-in-Japan quality shows in the fit and finish: the lid clicks closed with satisfying resistance and the tray sits flush without rattling.
A few caveats worth noting: the styrene resin tray has a lower heat tolerance than the outer case, so keep it away from direct sunlight for prolonged periods. The compartments are equal-sized, which is a minor limitation if you need one large bay and several small ones — for asymmetric storage needs, Daiso's other case formats may serve better.
Overall, this is the kind of product that ends up in your cart "just to try" and then quietly multiplies around your home. Reviewers consistently describe discovering new uses weeks after purchase. It has earned a spot in storage roundups alongside much pricier organizers — and it costs about as much as a piece of gum.
Value Score: 88/100
A near-perfect score driven by its made-in-Japan build quality, the clever removable tray, and remarkable hack versatility that punches well above ¥110. The equal-sized compartments and styrene tray's heat limit keep it just shy of gem status — but it's great value, worth every yen.
