The fits to the I-Phone were not optimal (I'm also fussy). The SIM card was not cut entkratet clean with my model - but right there is always the thumb ... that was "stupid". The screws were small and fiddly. A change (and I still have 6 PVC Farbbumper), would be annoying ... for permanent liked personally the frame unsatisfactory. In short, I started my first Internet order return. And me a "just mobile AluFrame" with hinged, locking system and no Sim cards cut ordered. The working class is, fits like a glove - costs however also 3.5 times .... and is in 5 seconds "off or on". * * * Delivery and date of the trader, however, were great!