The Benchmade 580BK Barrage Assist Axis Lock Knife Black Plain Edge is a strong knife with quick spring assisted action. Use the ambidextrous thumb studs to prompt the AXIS-Assist mechanism. For those who like the peace of mind that a safety offers, you'll be glad to know there's one on the handle back. Includes a reversible pocket clip for easy carry. The 580BK has a drop point blade that is BK1 coated.