Size is approx: 7.8 by 5.3 by 1 cmAdditional product info: Attach it to the back of your smartphone to support holding, or change the ring angle to use it as a stand!Handling Precautions- This product does not completely prevent the attached smartphone from falling. It cannot be used on smartphones or smartphone cases that have glass surfaces, anti-fouling, or anti-fingerprint treatments.- Please check the compatibility chart from the manufacturer before purchasing.- If the part of the smartphone to which it is attached serves as a lid for battery or memory card replacement, the cover may come off during use.- Before using, clean the area where this product will be attached thoroughly. If used with dirt or oils remaining, the adhesive strength will decrease.- Depending on your smartphone, you may not be able to use it as a stand.