Developed in collaboration with noted knife designer Ken Onion, the CRKT K400KXP Ripple knife offers a premium stainless steel build, with a silky-smooth and fast opening action thanks to the use of the IKBS internal knife ball-bearing system. The modified drop point blades have a high hollow grind, swedged top edge and a high satin finish. Instantly open the K400KXP by pressing the blade flipper with either hand. All Ripple models are frame lock, open build knives with stainless steel frames.