Gerber knives Mini Covert manual folder is based on the famous Applegate-Fairbairn design. The Mini Covert knife has a black Teflon coated high carbon steel blade with dual thumb stud for easy one-hand opening. The textured glass filled nylon (GFN) handles sit atop a stainless steel liner lock frame. This tactical folding knife comes with a black tip-down pocket clip for everyday carry.