Charm measures 15mm L x 10mm W Sterling Silver Chain & Charm Oxidized and Matte Finished Shown with Blue Onyx Sterling Silver Personalized Children's Phone Number & Doggy Neck 16" We created this cute necklace so that your child can always have your phone number with them, even if they are unable to read or use the phone. You can let them know if they ever need to call you, they can tell a grown up that they trust to call the number on their necklace. This charm can be personalized on both sides, so you can personalized this with mom's cell phone number on one side, and Dad's on the other side, as an example. Or, put the child's name on one side and a phone number on the back. Items are not necessarily shown actual size and may be enlarged to show detail. All screen resolutions are different so please note actual measurements. If you only enter 3 numbers, we will center them horizontally. If you like, we can add a dash or a dot at the end of the first and second row of numbers. Use an asterisk or period for a dot. The dot will be centered vertically. Click on picture to view samples and alternate views. LARGE FONT Characters including spaces are as follows: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 0 . & ? We also have a heart symbol. If you want to order it, please use the "$" sign where you would like the heart to appear. You may also mention that you want a heart in the 'additional comments' box. We can make a dash or comma out of our small font letter 'I' but in most cases we feel a dot looks better. Letters are only available in uppercase. You can personalize this necklace with anything that fits, it does not have to be a phone number. You can leave rows blank. If you enter your customization on one line only, we will center it in the middle of the charm.