This Little Multi-use Ruler Is Great For Any Student In Your House. You Not Only Get A Straight Edge 3.5" Ruler, But You Get A Magnifier, A Thermometer, And A Compass All In One Pocket Sized Tool. You Can Easily Fit This In Your Pocket Or Backpack. The Ruler Is Made Of Sturdy Clear Plastic.

* 3.5" X 1.25"

* Magnifier In Center

* Thermometer On One End

* Compass On The Other

* Straight-edge Clear Ruler