Molded from custom-formulated, high-grade polyurethane, tags are flexible, rugged, lightweight and reliable in harsh weather conditions.DuFlex Visual Identification Panel Tags are available in blank sets of 25 in a variety of bright, fade-resistant colors. Self-piercing studs are specifically angled to provide small, clean incisions; treated with Infecta+Guard to reduce risk of infection and disease transfer and facilitate proper healing. Available in your choice of highly visible colors blue, orange, purple, red, white or yellow. 1-3 4W x 2H. Complete with black studs.