Size is approx. 8.3 by 5.4 by 1 cmAdditional product info:Slide your finger through the ring to easily support holding your smartphone.The carabiner can be attached to things like bag handles, making it convenient for carrying or attaching a strap.- We recommend using a smartphone case with a charging cable port width of 10-15mm.- Even within the recommended dimensions, the combination of the smartphone and case or the material of the case may cause it to detach easily.- After attaching this product, please pull the carabiner to ensure it does not come off easily before using.