DURABLE DRAWING STENCILS: Made of high-quality, recyclable material, these rulers are sturdy and not easily broken. The clear scale and smooth edges ensure safety and convenience during use. CLEAR SCALE: The scale of our ruler is clear. And it is transparent. Both of these help to improve the accuracy of measurement. ARCED ANGLE: Our circular template ruler adopts the design of arc angle. There are no sharp corners, you can use it with confidence. PAPER QUILLING RULER SET: This quilting paper ruler kit contains 2 different sized rulers, both of which have pattern templates in a variety of sizes, making them very useful for many of your painting and drawing projects. WIDELY USE: Our circle template ruler is very popular with many people. It is widely used in schools, offices, painting, art production, etc.