The CQC-4KXL is a larger version of Kershaw's CQC-4. It's now available with a tough stonewashed D2 steel blade. The CQC-4KXL was designed by Ernie Emerson and built by Kershaw to tackle any serious EDC chore. This knife is manual opening with a thumb disk and Emerson's quick opening wave technology. It has a sturdy frame lock mechanism and a grippy black G-10 handle. Item includes a reversible pocket clip.