Smith & Wesson HRT3 HRT Military Boot Knife, Satin Finish, Black Rubber Handle. The Smith & Wesson HRT "Hostage Rescue Team" Military Boot Knife measures 7.37" in overall length. It features a 3.57" double edged dagger blade. The blade comes with a satin brush finish. Blade material is 440C stainless steel. The handles are contoured black Kraton rubber and provide a good grip. A Polymer neck/belt/boot sheath is included. This is a excellent buy on a great little hideout/backup knife with an very functional sheath. Weight: 4.6 oz.