Hole-Punched Solar Calculator Fits Folio Binder Rings

Ingenious calculator is punched to slip over the rings of your binder. It automatically travels with your planner so you can crunch numbers at your convenience. Doubles as a standard/metric ruler. Punched on both sides so it can always face up on either side of the rings.

Features:

• hole-punched to fit Folio-size binders
• punched along both edges
• performs basic functions plus square roots, percent, and memory
• doubles as a standard/metric ruler with conversion tables on back
• calculator measures 2 1/2" x 11" x 3/8" (64 x 216 x 10mm)

FOLIO Loose-Leaf page size is 8 1/2" x 11" (216 x 280mm)