Material: but material. Detachable key ring,the front is blank,can print the pattern and the back are glitter to catch your eyes. Any insert, photo or illustration shown in pictures are for demonstration purpose only and not included in the offer. Pendant Size:about 5X5cm, Stainless steel Ring:3X3cm. The key ring can hold your car key,house key. You can print the image wich you like in one sides of the keychain. It's just so perfect to printthem with your best selfies and photos of your family,,and pets! From personalized gifts toadorable customized accessories,they are really the good choices! Is a perfect personalised gift for anyone.