Lot purchased in order to change regularly, I'm not disappointed reasons. Even for a very attractive price, the 4 shells fit perfectly to my Galaxy S4 mini, the visuals are very clear and have a very nice record, very colorful. After 2 months of use (in turn), they are resistant to blows, well protect the phone falls and visuals have not deteriorated (despite the aggressions of my cat ...) A highly recommended!