Package quantity:10 pieces of photo insert keyrings, 25 mm split ring is already attached with each keyring, all keyrings are individually sealed to avoid scratches,it also can be used as party gifts. Duable materials:The main parts of the keyring are made of acrylic materials, sturdy and durable; you can clearly see the inside view after putting in the photo due to the clear colors on both sides. Size:Outer dimension is approx. 3.5 x 5.5 cm, inner dimension is 2.5 x 3.5cm. Personalised keyring:Just make your own keyrings by inserting photos in keyring photo holder. Wonderful gift to friends and family. Wide application:The empty keyrings for photos can be used as corporate promotional gifts, school souvenirs, party gifts, pet ID tags.