Classic 12" / 30cm Ring binder ruler now made safer with Shatter-Resistant material! Unlike standard rulers that create dangerous shards of plastic when bent or broken, our Shatter-Resistant material is much safer if the ruler is broken, making it ideal for young students. And the translucent body means you can easily see what you are measuring for better accuracy with both Metric and Inch graduations printed clearly on the ruler. Integrated ring binder holes and a large hang hole make this ruler easy to transport and store! Comes in assorted colors: Teal, Blue and Gray (no color choice).