What to say about Kershaw's Ken Onion designed Bump!! Simply Fantastic. In Ken's words, "I wanted to make the Bump as multi-tasked as possible". He succeeded! From the Speed-Safe Assisted Opening mechanism (initiated by ambidextrous thumbstuds or the Index Finger Opening System) to the unique blade design to the "bump" on the handle (which serves to further enhance the grip)this is one superb knife. The framelock design features textured handles in either blue/gold or green/gold. And each knife is individually serial numbered.Click on Options Menu for Available Handle Colors.