It is a Plastic Triangle ruler. With 1:3&1:4&1:5 scale line on, 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. helpful ruler!
Scale Rulers, Sewing Rulers
Shenkir 1:3&1:4&1:5 Plastic Triangle Ruler #TSR345
1:3&1:4&1:5 scale ruler
1.2mm thickness with transparent color
Sandwich line printing with plastic material
