Just Flip It Punched and Perfed Study Index Cards
The new fun and convenient must-have study aid - great for learning vocabulary, math, science or any subject! Study cards are pre-punched, to use with the enclosed ring binder, and perforated. Use as full-size (3" x 5") or half-size (3" x 2-1/2") cards. 75 full-size index cards or 150 half-size study cards. 1-1/4" binder ring keeps cards together and easily attaches to backpacks.
Manufactured by Esselte