Since the launch of the original Fish Safety Knife in 1989, the range has expanded to six product series.  The original design is the Fish 200 series and still continues to be our best seller.  The Fish 600 series is a lightweight, disposable version of the product.  The Big Fish and Shark series are bigger, more heavy duty cutters while the Fish 2000 and Fish 3000 series have a retracting hook blade.  All the safety knives in this range are suitable for cutting a variety of packaging while the Big Fish and Shark will cut ropes of up to a 12mm diameter.