3 1/2 overall. Black nylon injected casing. Precise, corrosion resistant 420 stainless blades cut up to 50 lb. test fishing line quickly and easily. Cuts monofilament, fluorocarbon, and braid. Spring loaded retractable tether allows attachment to boat, bag, clothing, etc. Extends to 36. Retracts automatically with push of a button. Compact, lightweight, and extremely durable. Also useful for hobbies, crafts, and sewing. Hang packaged.