Features:Premium Material: This protective case is compatible with Airtags/Air Tags, made of soft Liquid Silicone with elasticity, shockproof and anti-lost , easy to carry for pets collar, bag belts etc. Pet Collar Attachment: Clever design for dog / cat collars. No longer worry about losing your pets when you walk the dog or cats, since it is attachable easily and tightly onto the Collars. You can even tie it on to a Bag Strap for children or the elders. Luminous At Night : The case is made from Luminous materials , which can emit light at darkness, allows you to look for your missing pets or belongings. Signal Unimpeded: The protective case will not affect the signal transmission, allowing your Airtags to perform precise positioning. Sound Unaffected: The AirTags' built-in speaker plays sound and indicates the position, but our case will not weaken the sound transmission. Specifications:Material:Silicone Compatible:for Airtags Colors: Black + Blue + Green + Pink + White+Luminous Green+Luminous Blue+Luminous Pink Size: Approx. 100x67x10 mm / 3.94x2.64x0.39 in Weight: Approx. 7g / 0.25 ounces Note:1.Please allow +/- 0-1g , +/- 1-3cm error due to manual measurement. pls make sure you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3.Any Airtag is not included.Package includes:1Piece Protective Case