Kershaw/Emerson Trainer. The safe way to practice your wave shaped opening feature skills The Emerson "wave shaped opening feature" is a fast, effective, and impressive way to open your knife. The patented Emerson "wave shaped feature," a small wave-shaped tab on the top of the blade that's built to catch on your pocket seam, opens the knife as you withdraw it from your pocket. This instant-open feature is a favorite among military, rescue, and law enforcement knife users. But it does take a little practice. Enter the Kershaw-Emerson E-Train, our Emerson trainer knife. The blade is unsharpened so you can safely practice using the wave shaped opening feature without endangering either your pocket or your fingers. The E-Trains G-10 front scale is in safe-training blue for easy identification. There's a left/right reversible pocketclip so you can easily carry it with you to train whenever you have a spare moment. FEATURES and SPECS: Designed by Emerson, built by Kershaw Unsharpened trainer model Thumb disk; "waved shaped opening feature" Manual opening Reversible pocketclip, (left/right) Steel: 3Cr13, stonewashed finish Handle: G10 front, steel back Blade length: 3.2 in. (8.1 cm), unsharpened Closed length: 4.5 in. (11.4 cm) Overall length: 7.7 in. (19.6 cm) Weight: 5.1 oz. (146 g) PRC