The function of the cover is self-explanatory. It is positive that the original cover is not affected, since the cover is provided with its own back-cover. After a short time, however, the edge starts to peel off and denied the inferior adhesive bond - a part which has an MSRP of just 35 Euro and Amazon to the 20 Euro cost woefully inadequate. The same part is also available for the Samsung Galaxy S3, there warn countless reviews prior to this point, seemingly at the score 2 not because most people do not put their score 2 in your pocket and thus save more.
For those who put their score 2 sometimes in your pocket or leave laying around in your handbag: Stay away!