The Gateway Hook Company unveiled their product about a year ago. I haven’t yet come across this open eyed hook in the shops I frequent. The concept is evident: no threading the eye of a hook, particularly a small hook. You or someone ties the flies on a Gateway No Tie Hook. A loop is constructed on the end of your tippet and cinched down around the open eyed hook. A blocking nub is at the end of the hook’s open wire eye to prevent the loop from sliding off. I will leave to your imagination/assessment as to what is saved or avoided with the product.  Gateway No Tie Hook Loop Knot Tutorials