For drafting rounded corners on pockets, bags, shirt tails etc. The corners are 2,3,4 and 5cm radius on the outer edge. The width of the ruler is 1.5cm or 5/8" so you can draft your seam allowance at the same time. There's a silicone hemmer exactly the same shape, and a deal if you want to buy them both together.
If you're buying from outside the UK - please buy through Etsy to have the correct tax applied. This should save you paying any local handling charge in addition to any tax.
Jenerates Corner Ruler
Overall dimensions: Metric 10x10cm, imperial 4"x4"
Designed and made in Scotland from 4mm thick cherry wood veneer