It's a tracing wheel for patterns. You Tube has videos how to use them. I also like to do the no tear paper piecing.
http://www.quiltnbee.biz/shop/Block-...5-x7562107.htm
Originally Posted by
Geri B
Here's another way to treat the paper for tearing. If you've done clothing pattern sewing you probably have one of these: a little wheel with spikes on a long handle - ( don't know it's tech name) -run it on each line - before any sewing - it will make tearing on those lines so much easier. Took me a while to find my wheel, but did and it does work well.