Benchmade’s Griptilian line was collaboration with Mel Pardue. The 550-1 offers a gray G-10 handle with a CPM-20CV steel blade. The thumb hole makes this knife easy to open. To close just pull back on the Axis lock and fold the blade back. It comes with a reversible pocket clip for easy carry. When it comes to all around functionality, you can’t beat the Griptilian?. There are more shapes, sizes and colors available in the Griptilian than any other product family from Benchmade.