MTECH USA Mt-A807Sl Spring Assist Folding Knife, Two-Tone Half-Serrated Blade, Black and Silver Handle, 4.5-Inch Closed Spring assist folding knife offers rapid one-handed deployment, locks securely into place with liner lock 3.25-inch two-tone half-serrated stainless steel blade Black and Silver aluminum handle Pocket clip for easy and safe carry Measures 4.5 inches closed