TAC Force TF-809 Series Spring Assist Folding Knife, Two-Tone Blade, 4.5-Inch Closed Spring assist folding knife offers rapid one-handed deployment, locks securely into place with liner lock Two-tone black and silver stainless steel blade with Reverse saw back Black aluminum handle with two circle cut-outs and a silver SKULL logo Pocket Clip for easy and safe carry; seatbelt cutter and glass breaker for emergencies 4.5-inch closed length; 3.5-inch blade length with 3 mm thickness