CNATTAGS Bone Pet ID Tags, Premium Aluminum, 8 Colors to Choose Colors: Black, Blue, Gold Color, Green, Pink, Purple, Red, Silver Color Size: 1.6 inches x 1.1 inches. 4.0 cm x 2.7 cm. Thickness: .046" (1.17 mm) Stainless Steel Split Ring Included AND LIFE TIME WARRANTY TO COMPLETE YOUR PURCHASE: Please Click "CUSTOMIZE NOW" Permanent Personalization Enclosed split ring Rust Proof Anodized Aluminum Double-sided Engraving Bone: 1.6 inches x 1.1 inches. 4.0 cm x 2.7 cm. Thickness: .046&#034; (1.17 mm)