These "slip joint" pocket knives are made by traditional techniques to give you a durable knife just like grandpa used to carry. These knives are made to last and will serve you well for generations. Whether you need to open a box, cut some fishing line, or pare an apple, this is the knife for you. Some materials available are mother of pearl, cocobolo wood, buffalo horn, and ebony. Many other choices of style, materials and steel are options.