When given the option to have my grips produced my ODI it only made sense. ODI's quality has stood the test of time and their grips outlast all others. I designed these grips to be reinforced with thicker ribs in the main wear patterns to last longer. The smaller flange was added simply for the sleek and stylish look and to change things up a bit vs. no flange at all. For installation, I typically try to use an air hose. If one is not around, WD-40 works like a dream. I prefer to run my grips at stock length, but don't be fooled as these can easily be stretched out for those who want a longer length.