Function: It effectively solves the defects of clear center and blurry edge of mobile phone camera, It ensures sufficient transmittance, not only the brightness of the picture, but also clear of the picture quality Material: Made of aluminium alloy and optical glass materials, it is durable and Practical Description: Features: This is an external lens dedicated professional photographic equipment such as digital DV/DC, with Cool appearance and precise and fine imaging effect Easy to install: Equipped 37mm mobile phone adapter clip installs the lens and directly clips it to the mobile phone camera, so that your mobile phone can become a SLR camera