Size is approx: 5.6 by 3.8 by 1cmAdditional product info:Attach it to the back of your smartphone to support holding it, or change the ring’s angle to use it as a stand!- This product does not completely prevent the attached smartphone from falling. It cannot be used on glass surfaces, or smartphones and smartphone cases that have anti-fouling or anti-fingerprint treatments.- Please check the manufacturer’s compatibility chart (will redirect to another site) before purchasing.- If the part where it is attached is a cover for battery or memory card replacement, the cover may come off during use.- Please wipe clean the part where you will attach this product before use.- If used with dirt or oil remaining, the adhesive strength will decrease.- Depending on your smartphone, you may not be able to use it as a stand.