JR Designs MegaM1X handles are designed to fit all M1-X and M1-X SS reels. This was designed to solve my two biggest complaints with the stock handles: 1) They break REALLY easily, and 2) they're just not that comfortable to use. I recently changed the design of these after some more field testing. Now the back side of the handle (closest to the riser) will be flat. This allows for a bit more room between your fingers and the reel handle, without sacrificing any comfort or strength. As with all of my 3D stuff, I offer a life-freaking-time guarantee: If it ever breaks, cracks, melts, explodes, or otherwise becomes inoperable due to manufacturing issues or your own stupidity (hey, we've all been there...), simply send it back for a brand new one, no questions asked! 13 colors available to match the rest of your bow bling!