The CQC-4KXL offers a larger blade of just under 4 inches, with a G10 front scale and steel back. A sturdy frame lock secures the blade open during use and releases easily to close. Of course the CQC-4KXL features the patented Emerson "wave shaped feature." A small wave-shaped tab on the top of the blade is built to catch on the pocket seam, opening the knife as it comes out of the pocket. This instant-open feature is a favorite among military, rescue, and law enforcement knife users. Alternatively, you could just use the built-in thumb disk to open the CQC-4KXL manually. We include a reversible pocketclip for left- or right-handed carry. Features: - Designed by Emerson, built by Kershaw - Thumb disk; "wave shaped opening feature" - Manual opening - Frame lock - Reversible pocketclip, (left/right) - Steel: 8Cr14MoV, stonewashed & satin finish - Handle: G10 front, 410 stainless steel bead-blasted finish back - Blade Length: 3.9 in. (9.9 cm) - Closed Length: 5 in. (12.7 cm) - Overall Length: 9 in. (22.9 cm) - Weight: 6.1 oz. (175 g)