This is one of those tools that you just can't figure out why it took so long to invent, and why it took me so long to try it out. This tool is amazing, I make custom items for the home and this thing makes perect angles. The angle - izer template tool is made of Premium Stainless steel which is far more STURDY & DURABLE than the plastic angle – izer rulers. The scale is engraved by laser and will never fade.It is a huge time saver on making fabric cuts for quilts. Did not realize how much I needed it until I got one.