Solid Brass Proportional Divider 9 inch By Roorkee Instruments with Wooden Storage Case The Proportional Divider is not just for architects...it's an invaluable tool for artists! Heavy Brass/ Steel/ Adjustable with Wood Storage Case. This detailed item measures approximately 9 inches Point To Point and 3/4 inch wide. Box is approx. 10 x 2.5 x 1 1/2 in. Align your desired subject matter in the small end of the divider and transfer the spacing of the larger end to your drawing surface. NOTE: A FISH SKELETON KEYRING IS SENT ALONG AS A GIFT