Petoskey stone, pocket knife with Lapis and white mother of pearl for accent stones. The blade is 2″ long, closed 2 7/8″ in length, total open it is about 4 7/8″. On the rear of the handle it is wood. Linda Michaels has a guarantee with all of our Petoskey stone knives! Designed for us by a small 3rd generation company in Santa Fe with our Petoskey stone.