Introducing the Bark River Knives Ultralite Field Knife CPM 3V Pink G10 Toxic Liners. This knife is designed with a blade length of 4.38 inches and a thickness of 0.125 inches. When fully open, it measures 8.5 inches in length. Despite its sturdy construction, it weighs only 5 ounces. This knife is a perfect combination of durability and lightweight design.