The Prym Ergonomics Rotary Cutter is an essential dressmaker's tool, allowing you to cut efficiently, accurately and comfortably all in one! Featuring an ergonomic design matched to the natural shape of a hand and unique blade guard, safely make cuts with ultimate ease and little to no hand fatigue. Suitable for left and right-handed use. Each Prym Ergonomics Rotary Cutter features a 45mm diameter blade made from stainless steel.