A one piece tagging system with proven retention Combine rugged durability with advanced design features to easily tag calves without tearing tender ears. Made of soft, flexible material that won t curl, twist, crack or peel. Ear tag design ensures that back of tag won t snag, pull out or break off. Exclusive self-piercing tag tip makes a clean, precise incision to reduce risk of infection. Unique pivoting applicator pin promotes healing and virtually eliminates ripped or torn ears. Tag measures 2-1 2W x 3-1 4H.