Easily Show Chemical Structures to Your Class

• Flexible, Durable Magnetics
• Clear Two Color Definition

Use this unique device to make your own magnetic visuals to show chemical structures. Printed in two colors (blue and red) on flexible vinyl-coated magnetic sheets, durable (1.32" thick) yet easily cut with scissors, units adhere to magnetic boards and magnetic dry-erase systems. Positive ions have one point per charge, while negative ions have one ggrooveh per charge. Proper fit is achieved only by having the correct number of + and - ions. Includes booklet with reproducible ion fit sheets. Use to make overhead transparencies for your lectures or ion fit sheets for each student.