CNATTAGS Pet ID Tags Rivet Shape, 8 Colors, Personalized Premium Aluminum (RIVETS NOT INCLUDED) 2.00 inches x 0.75 inches 5.08 cm x 1.90 cm. Thickness: .046" (1.17 mm) LIFETIME WARRANTY Exclusively by CNATTAGS Stainless Steel Split Ring Included RIVETS NOT INCLUDED "TAG ONLY" TO COMPLETE YOUR PURCHASE: Please Click "CUSTOMIZE NOW"