It is a 24 inch imperial plastic pattern making template.
SIDE CURVE – ARMHOLE & NECKHOLE – SLEEVE CURVE
UPPER ARM – UNDER ARM
This ruler has been sandwich printed between two pieces of plastic so that the numbers do not rub off.
A transparent ruler allows you to see your project under the ruler for accurate positioning and marking.
It is a perfect tool for assisting the user to increase or decrease the size of a pattern.