TOPS graph paper is ruled on 2 sides with waterproof non-copyable blue ink. These quadrille pads feature heavyweight paper and a firm chipboard that offers a solid surface to write upon anywhere.
- Sturdy 28-pt chipboard backing provides a firm writing surface.
- Includes 50 sheets of 20-lb paper per pad.
- SFI certified.
- This white graph paper comes in 50 sheets with 8 x 8 squares per square inch.