Originally Posted by Newbie Quilt

Hi! I literally just signed up for this forum because I'm a brand new quilter (26 years old) and was hoping one of you more experienced quilters could help me with something

My mom (who doesn't know too much about quilting), said that I need 45mm rotary blades for my rotary cutter...

There are a few options online, I don't know anything about these blades..

Help!?