Top Notch Teacher Products 1 1/2″ Ruled polka dot tablet flip chart in blue color measuring 24″ x 32″ includes 25 sheets. Flip chart has spiral bound and is ideal for your child’s early learning. Blue. Subject: Early learning. Title: Chart Tablet. Size: 24″ x 32″ large. 1 1/2″ ruled. 25 sheets. Spiral bound. Design: Polka dot.