Campus Smart Ring Binder / KOKUYO

• Sizes: B5 (26-hole), A5
• Max Capacity: 25 sheets
• Compatible Paper: B5 26-hole loose-leaf, A5 loose-leaf
• Colors (B5): Purple, Yellow-Green, Deep Pink, Clear, Blue-Green, Yellow, Pink, Light Blue
• Colors (A5): Light Blue, Deep Pink, Clear, Yellow-Green

Standard ring binders have a familiar problem: the rings sit above the cover, so the binder never lies flat and the cover juts out awkwardly when open. KOKUYO's Campus Smart Ring addresses this with a redesigned ring mechanism that allows the cover to fold completely back on itself, keeping the whole binder flush on the desk surface.

The result is a binder that measures just 13mm at its thinnest, thin enough to slip into a bag without taking up the space of a traditional binder. The ring opens wide for smooth, snag-free page insertion and removal, a small detail that matters when you're adding or rearranging notes mid-class or mid-meeting. Available in B5 (26-hole) and A5 formats across a range of colors, it fits into the Campus ecosystem alongside KOKUYO's loose-leaf paper lineup.