CNATTAGS Pet ID Tags Many Shape, 8 Colors, Personalized Front and Back Premium Aluminum for Dogs and Cats Colors: Black, Blue, Gold Color, Green, Pink, Purple, Red, Silver Color Shapes: BONE, HEART, ROUND, GI MILITARY, STAR, HOUSE. Stainless Steel Split Ring Included LIFE TIME WARRANTY TO COMPLETE YOUR PURCHASE: Please Click "CUSTOMIZE NOW" Permanent Personalization Enclosed split ring Shapes: BONE, HEART, ROUND, GI MILITARY, STAR, HOUSE. Colors: Black, Blue, Gold Color, Green, Pink, Purple, Red, Silver Color Bone: 1.6 inches x 1.1 inches. 4.0 cm x 2.7 cm. Thickness: .046&#034; (1.17 mm) Heart: 1.25 inches x 1.05 inches. 3.2 cm x 2.7 cm. Thickness: .046&#034; (1.17 mm) Round: 1.4 inches x 1.2 inches. 3.6 cm x 3.1 cm. Thickness: .046&#034; (1.17 mm) GI Military: 2.0 inches x 1.1 inches. 5.0cm x 2.8cm. Thickness: .046&#034; (1.17 mm) Star: 1.5 inches x 1.5 inches. 3.81 cm x 3.81 cm. Thickness: .046&#034; (1.17 mm) House: 1.25 inches x 1.5 inches. 3.17 cm x 3.81 cm. Thickness: .046&#034; (1.17 mm)