Made out of Aluminum, this pet tag is weatherproof. A ring is included for attaching the tag to the collar. Please note aluminum is a soft metal and will wear similar to most other aluminum tags. ♥ Size Small - 1" Round (Good for small breeds and cats) Large - 1.25” Round (Best for larger breeds) 0.06" thick ♥ When checking out, please include the following information in the personalization area: ♥ Provide the text you want on the tag: (1) Name or message to be engraved on the front (2) Text to be engraved on the back Please note, the more text you enter, the smaller it will get to fit the tag. ♥ Turn around time is 1-3 business days ♥ We look forward to making a custom pet tag for your fur baby.