Silicone; Ensure your belongings are easily identifiable and always trackable, combining style and security in one sleek accessory; designed with a special compartment to seamlessly fit an AirTag behind the identification card; ID card 3.4"w x 1.8"h; ID window 2.1"w x 0.4"h; Assembly of stainless steel braided loop required; Product Size: 3.5" w x 2" l
