Brave Ar-Lock Pencil Case Double-Sided Slim Tough Cover / Sonic

• Dimensions: 94 × 222 × 29mm
• Locking mechanism: AR-Lock double-sided lid lock
• Pencil holder: 6-pencil capacity
• Includes: Removable pencil sharpener
• Cover material: Tough PU (tear-resistant)
• Materials: ABS, PE, PU
• Color: Black

The AR-Lock system was developed to address a specific and recurring frustration in Japanese elementary schools: pencil cases that pop open inside bags, scattering pencils, erasers, and sharpeners across the bottom of the bag before the school day even starts.

Sonic's solution locks both sides of the lid independently, so even if pressure is applied from one angle, the other side holds. The open and close action is still quick enough for a child to manage at their desk, but secure enough to survive being wedged under a textbook in transit.

The "Brave" series adds a tough PU cover that resists tearing at corners and seams, and the stitching is reinforced to hold up to daily handling over an extended school year. The body itself sits at 29mm, which Sonic describes as among the thinnest in its class for a case with this capacity, specifically sized to fit in the narrow side pockets common in Japanese elementary school bags.