This is a set of two name tags where you can write your name on the back. The material is vinyl-like and flexible, making it less likely to scratch children's umbrellas or belongings. Immediate purchase is possible. Size Diameter: Approx. 3.6 mm Thickness: Approx. 2.0 mm Please note that these are amateur measurements and may have some errors. Please consider this item after understanding that it is a home-stored, used item. Please check the product condition in the photos, but if you would like additional photos, please leave a comment.