Use this size to make 2-1/2in finished size half square triangles. The seam allowances are included in the pattern, so all you need to do is sew and cut using the pattern on the paper. Instructions are provided on the paper. Each roll makes 700 half square triangles. **It’s Sew Emma prohibits customers from selling on Amazon or unauthorized third-party sellers to resell on Amazon. Brewer customers who disregard this policy may have purchase orders canceled or accounts terminated.**