Hi

I'm about to order Butterfly Knives but note that they come in two sizes (large 375mm x 80mm blade) and medium (275 x 80mm blade).

I'm a bit confused about the correct length to order. I know that the size should relate to the length of your arm from elbow to wrist. Personally, that measurement is 260mm (10.5 inches) from inside of elbow joint to wrist joint.

C'mon - what size should I buy? They're the same price....

Thanks for your help

PE