Size is approx; 5.6 by 3.8 by 1cmAdditional product info; Attach this to the back of your smartphone to help with grip or adjust the ring angle to use it as a stand!- This product does not completely prevent the attached smartphone from falling. – Do not use on glass surfaces, anti-fouling, or anti-fingerprint treated smartphones or smartphone cases.- If the part where the product is attached covers a battery or memory card cover, the cover may come off during use.- Clean the area where you will attach this product before use.- Adhesive strength will decrease if used while dirt or oil remains.- Depending on your smartphone, it may not be usable as a stand.