With the material of metal and copper and 3D images. Our 3D key rings always stand out among those ordinary key rings. There are four small rings and one big ring. Size of square part is 40.5 x 64 mm. image size is: 34 x 52 mm. Our price is very reasonable but very high quality. free samples can be sent for your easy reference. OEM of different size and shapes is always welcome. please feel free to contact us with any questions.