I adapted this little clip on the original cover Nokia (CP-623) of a Lumia 1520. The other part of the clip just perfectly fit the curve of 1520. Note that once in place, unless the take off of the phone (other adhesive tape provided) you can not use other protective shells. I do not put 5 stars because the magnetization is really feeble original, I have to reinforce with neodymium magnets 0.5mm thick.