It is easy to set up, move, and clean. Insane but. medium size fits with Sennheiser CX 300 II. The grip on the bottom is amazing. Purchased a pair of these as a gift that she absolutely adored! I am very happy with the look, and the fact that is rests flat against the phone -- and the silver looks great with the blue phone! Will help prevent a few knocks, but looks bad. Good quality, fits perfectly & arrived quickly. Love the leather strap it comes with. But maybe they will soften over time.