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. It doubles as a standard/metric ruler, and is punched on both sides so it can always face up on either side of the rings.
7 Hole punched to fit Folio size Loose-leaf binders
Punched along both edges so you can insert it when and where you need
Performs basic functions plus square roots, percent, and memory for all your accounting needs
Doubles as a standard/metric ruler with conversion tables on back for quick and easy reference
Fits easily in to a folio size planner, 8 1/2" x 11". Calculator measures 2 1/2" x 11" x 3/8" (64 x 280 x 10mm)