stackable pencil

They use No. 2 lead that is non-sharpening and refillable — each pencil is often supplied with nine refillable #2 leads.

Capacities vary by box size: some hold 100+ pencils, others 180+ or over 200 pencils; marker capacity is typically around 100–130, and the largest boxes can hold roughly up to 230 crayons.

Stackable pencil boxes are made from various plastics, commonly polypropylene (PP or PP5), ABS (Acrylonitrile Butadiene Styrene), and other generic plastic materials.

Common closures include snap or snap-tight lids and bilateral or two-latch mechanisms (latch handles) that hold lids closed and contents contained.

Warranty coverage varies by product; examples observed range from a 60-day warranty up to a 2-year warranty.