That Purple Thang is a MUST HAVE for every quilter/crafter/seamstress!!
The blunt edge measures 1/4″ so you can do a quick double check of your seam allowances, while the pointy edge makes quick work of turning corners or easing fabrics under your presser foot. The wee slit in it is great for threading elastic
It is the notion you didn't know you needed until you have it!