Olfa, 60 mm, original rotary cutter.

There's no reason to struggle cutting through multiple layers; it's hard on the material and hard on you. This OLFA® rotary cutter is ideal for medium to heavy-duty projects. It can accommodate up to eight layers of material. (RTY-3/G, #9653) Good for: cutting strips, multiple layers and finishing quilts prior to binding. Cuts fabric, paper, tarp, vinyl, upholstery, leather and other thick textiles. 8" long.