The numbers are not amenable to wear and tear (see video). 

Diameter: 2.5 mm. 

Glue and tool included in this lot.

About the glue. 

This is a medical glue that can also be used by humans to apply to wounds and abrasions. It is great for tagging bees. Composition: alcoholic solution of a modification of phenol-formaldehyde resin, polyvinyl butyrol and rosin, plasticized with a plasticizer. Store at temperatures not exceeding 25 degrees Celsius.

Shipping to USA: Approximately 2-3.5 weeks to buyer's door by USPS courier service. PO Box shipping available. Track number may not be added immediately, but within 5 days of shipment. 

Delivery to other countries: Approximately 2-6 weeks depending on the country.

You can always email me and consult me with any questions.

This tag can also be used for snails and other insects, animals and plants.