This rotary cutter is capable of cutting several layers of fabric, the cutting resistance can be adjusted to suit different material thickness. When pressure is exerted, the blade of the rotary cutter automatically slides back. If the blade is in the rest position, the guard slides into place to cover it. The ergonomic, rubberised soft grip prevents the cutter from slipping out of your hand even with fairly heavy pressure. Perfect for patchwork, quilting and dressmaking. Suitable for right and left handers.