Apexel® Téléphéne Camera Lens Kit 3in1 Fish Eye Clip-On 180 ° + 75 ° Wide Angle + Macro lens with 10X Smart Mobile Phone iPhone 6 6 plus 5 5s 4s Samsung HTC-Black (Electronics)
Unique fixing system, extremely practical, very good quality. At that price I do not see what can be better, to recommend