The models offered by Randall have been developed over a period of 68 years from personal experience, extensive research and the study of hundreds of designs submitted by individuals around the world requesting custom-made knives. Each model has been thoroughly field-tested and has proven to be properly shaped and designed for its particular use. Randall knives are 100% hand made and no two are exactly alike. Demand is so great for all models that there is typically a wait of a few years to deliver a new knife ordered from Randall. All Randall knives listed as "In Stock" on our site are ready for immediate delivery.