Y-Tex All American 2-Piece Combo Ear Tag Laser Large White 1-25The tags are made of an advanced polyurethane formulation and are engineered to prevent cracking, remain flexible and provide excellent longevity. The All American ear tag design features a Snap Lok collar for superior retention, a longer neck for greater visibility and ultraviolet inhibitors to resist fading. Ribbed neck prevents breakage. Sloped shoulder resists snagging. Tag edges with radius design prevents flex cracking. Fast, simple application.