Size is approx; 7.9 by 5.1 by 1cmAdditional product info; The ring helps you support your smartphone by threading your finger through it for better grip. Since the carabiner can be attached to your bag or strap, it is convenient for carrying or attaching it.- It is recommended to use a smartphone case with a charging port width between 10-15mm.- Even with the recommended dimensions, it may be easy to come off depending on the combination of the smartphone and the case, or the material of the case.- After attaching this product, please ensure that the carabiner does not come off easily by pulling it before use.