Package: 100pcs 001-100 numbered ear tagger & 1pcs ear tag clamp pliers. 
Material:  TPU plastic, anti-aging, antifreeze heat, harmless, non-toxic, and lightweight, which would not harm the animals or affect their daily activities.
Design: The ear tag is designed in a 1.6" x 1.9" compact size, this bright yellow ear tag is laser printed default serial number, is not easy to fade, and is more legible.