Made from ASTM Standard (B209-10) Aluminum Sheet Metal tags can be used for research/laboratory animals, such as rats and mice Small aluminum tags numbered 1 to 100 with 100 washers Insert tag through hole; place washer behind hole Bend ends of tag back in rivet fashion, leaving space for ear growth Required Accessories: Sci. Labs #796-104 or #796-105 punch to make hole in animal's ear
100% Satisfaction Guarantee: At Mansion Labs, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Labs in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.