The Olfa 45mm easy blade change rotary cutter is an essential tool for your quilting needs. Simply release the blade by sliding the locking mechanism on the back of the handle - no washer and no assembly. Suitable for both left and right-handed users. Innovative split blade cover takes the effort out of switching from left to right-hand. Anti-slip rubberised grips on both sides of the contoured handle provides secure comfortable handling. Can cut up to 6 layers of fabric.