I purchased the light green vulp without the opener and it's one of the best things I ever felt in my hands. It came in less than 9 days and I was surprised by the affordable price. I previously had a cheap metal trainer balisong, and it doesn't come close to the feel and smoothness of the vulp. It's as buttery as you can imagine and the design is perfect for all balisong flippers. It also comes with additional materials for tuning, which is a big plus.