In 1990, the original Spyderco Endura blazed a trail as the first lightweight clip-carry folder. Since then, it has earned an enviable reputation as one of the most popular and enduring folding knife designs ever produced. Now in its fourth generation, it has also inspired a number of variations of the basic design. The stainless-steel-handled Endura 4 combines all the proven features and benefits of this iconic design with the heft and increased strength of a stainless handle. Its blade is saber-ground from premium VG-10 stainless steel and proudly features Spyderco's Trademark Round Hole for quick, reliable one-handed opening. Available in PlainEdge, SpyderEdge, and CombinationEdge configurations, the blade is supported by a sturdy back lock mechanism that locks it securely open when in use. Its satin-finished handle is chamfered at the edges for added comfort and includes four sets of mounting holes for the hourglass clip to support left or right-side tip-up or tip-down carry.