perfect Keychain Size: The acrylic board is about 2 x 8 cm/ 0.78 x 3.1 inch, the thickness is 3 mm, the key ring is 2.5cm, fit in small bags like wallet. and : Made of quality acrylic material with clear and smooth edges, which 't scratch your hands or objects when being applied. Also not easy to get broken or deformed. Great Sealing: Both sides of the acrylic key chain disc are covered with protective film to prevent scratches. Just tear off the film to get a smooth blank. Sufficient amount meet your DIY crafts and keychain making projects. Wide Application: These acrylic keychain blanks are transparent, which provides enough room for your creativity and imagination. You can write blessing words, paint, and paste stickers to make your unique keychains.