The Mac Coltellerie Sub 11 D 2 Knife is suitable for spearfishing, scuba diving and fishing. Made in Italy. It has a blade length of 11 cm (4.33 inches), with an overall length of 23 cm (9.05 inches). The strong Mac Coltellerie Sub 11 D Knife has a double-edged blade with one serrated side. It is a durable knife with a safety scabbard that that has an O-ring at the rear to fasten the knife securely in place and to remove it one-handed if needed. Detailed Description Made in Italy with state of the art equipment, unique moulds and quality presses. A very durable knife from a company that has been around for almost half a century and is known for its quality hunting and diving knives. The pointed tip makes this a great companion knife for all spearfishermen. This knife is for spearos who want a spearfishing knife that can easily penetrate fish to dispatch them quickly. Mac Coltellerie Sub 11 D Knife Features: 11 cm Blade Length Straight and Serrated Cutting Edges Lanyard attachment hole in handle Comes with Plastic Protective Sheath Mac Coltellerie Sub 11 D Knife Specifications: Blade: Stainless Steel - W 1.4116Hardness: 55-56HRCThickness: 3.8 mm (0.149")Weight: 112 g (3.95 oz) Handle material: PP and TPE mixture