The good folks at Olfa have created an ergonomic rotary cutter that comfortably fits in your hand and has the added bonus of a safety lock! Don't worry if you are a leftie! The easy-to-change blades can be set for both right and left-handed cutters!
Go ahead! Choose your cutter!
45 mm. This will serve pretty much any and all your cutting needs!
60 mm. A wonderful rotary cutter for those thicker, multiple layer jobs!