Size is approx: 5.6 by 3.8 by 1cmAdditional product info: Attach this to the back of your smartphone to support your grip or change the ring 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, anti-fouling, or fingerprint-resistant treated smartphones and smartphone cases.- If the part to be attached is a lid for battery or memory card replacement, the lid may come off during use.- Make sure to clean the area where this product will be attached before use.- If dirt or oils remain, the adhesive strength may decrease.- Depending on your smartphone, you may not be able to use this as a stand.