7.3 by 4.6 by 1cmAttach it to the back of your smartphone to support holding or change the angle of the ring to use it as a stand!- This product does not completely prevent the attached smartphone from falling.- Cannot be used on smartphones with glass surfaces, anti-fouling, or anti-fingerprint treatments.- Please check the manufacturer’s compatibility list ( transitions to a different site) before purchasing.- If the area where the part is attached is the lid for battery replacement or memory card replacement, the lid may come off during use.- Clean the area where you attach this product thoroughly before use. Adhesion will decrease if dirt or oil remains.- Depending on your smartphone, you may not be able to use it as a stand.Smartphone not included.