This DS-A014BK spring assisted open folding knife from dark side blades offers easy one handed deployment. Once open, the blade locks securely into place with the use of its liner lock. This knife features a 4-inch, 3mm thick black stainless steel blade and black aluminum handle. Comes complete with a pocket clip for easy and safe carry. Measures 4.5 inches closed. Dark side blades offers a wide variety of fantasy-themed, spring-assisted folding knives featuring edgy designs with rapid deployment.