Fully automatic, the Gerber 06 Automatic has an oversized release button that has a safety which can be locked in the open or closed position. The handle is hard anodized 6061-T6 machined aluminum that is contoured to fit in the hand. Gerber used premium S30V stainless steel with a black oxide coated blade that holds up to the abuse without losing its edge. Blade: 3.6" Overall: 8.5" Closed: 4.9" Weight: 5.7 oz.