Look at your cutting mat....

THE 45 degree the bottom part of a fan block

The 60 degree would be good for Stack n Whack/Kaleidoscope quilt.

I'm with Tartan....

They are called Quilter's Charming Angles. The package I have says most common angles used by quilters, great for checking angles on paper patterns, helpful designing tool, easy to carry and use, and useful with geomatic (not sure what they mean by that)

mimisue -- I'm with you. I think they would make beautiful circles! I think mixing them up tomato a circle would work as well ... but I'll let you do the math! LOL

These templates are very interesting. I would think they could be used to quilting and perhaps you could make something sweet using these templates. If you have a marker, a permante one, you can mark them and use them for dresen plates. That's a good idea.

I also think they are just pieces used to verify/check an angle.

I would try to send an email query to Extra Special Products to see if they can help you