Size is approx. 8.6 by 5.2 by 1cmPass your finger through the ring to easily hold your smartphone.You can attach the carabiner to your bag handle, making it convenient for carrying or attaching a strap.- We recommend using a smartphone case with a charging cable port width of 10 to 15mm.- Even with recommended dimensions, the smartphone and case combination or case material may cause it to be loose.- After attaching this product, pull the carabiner to ensure it does not come off easily before use.