Pentel Ain Limited Edition Secret Mechanical Pencil Lead Case 100-Piece Display Set
Straight from a Japanese stationery counter, the Pentel Ain Limited Edition Secret Mechanical Pencil Lead Case 100-Piece Display Set lets you bring home an entire retail display, not just a single item. The set includes a counter display stand holding 100 individually sealed blind polybags, so opening each lead case is its own small surprise. Inside, you'll find one of three special diamond metallic finishes: black, blue diamond, or diamond, with all three colors guaranteed to appear somewhere among the 100 pieces (the manufacturer hasn't disclosed the exact breakdown).
Pentel Ain launched in 2023 and reaches its third anniversary in 2026. The line is built around balancing qualities that usually work against each other: smoothness, break resistance, and resistance to smudging, all improved over earlier Pentel refills. These limited edition metallic cases take that everyday reliability and dress it up, turning a simple pencil lead refill into something worth collecting.
The display stand measures 300mm wide by 300mm deep by 495mm high and weighs 1,407g total. Each individual lead case measures 40mm wide, 7mm deep, and 140mm high, weighing 10.3g. This is a brand new, unused item, complete with all 100 sealed cases and the original display stand.
Pentel Ain Limited Edition Secret Diamond Metallic Mechanical Pencil Lead Case Display Set. Includes 100 sealed mystery lead cases and a display stand. Each case contains a secret polished design, with Black, Blue Diamond, or Diamond versions randomly included. All colors are included within the 100-piece set; the quantity breakdown is not disclosed by the manufacturer.
Display size: 300 × 300 × 495 mm. Display weight: 1,407 g. Lead case size: 40 × 7 × 140 mm. Lead case weight: 10.3 g. Pentel Ain lead is designed for smooth writing, break resistance, and reduced smudging.
