User Review: Spyderco Delica4
Price Paid: gift from a friend
I own a Spyderco Delica 4 Emerson Opener and am happy with this knife.
This knife I found very good, is easy handling, fits nicely in your hand, is strong and holds up to abuse.
For those who do not know, the wave system, patented by Emerson, is the hook or ledge to put on the back of the time so that when the knife out of his pocket, snaps and open as you are pulling them.
This system is probably the fastest there at the time of opening a knife from his pocket, even more than an assisted or automatic.