【Innovation Upgrade】The new waterproof AirTag adhesive mount is specially designed for AirTag. The carbon textured fibre surface design is higher on the innovation scale. Carbon texture fibre surfaces offer several benefits such as Stress resistance, durability, and resistance to corrosion and temperature changes. Keeps AirTag safe and is durable. (Patent Pending) | 【IPX8 Waterproof Airtag Holder】The holder fits tightly enough. There's also a silicone cover that slips over the AirTag, and creates a secondary seal on the interior walls of the case. (*** IMPORTANT TIP ***the water resistance would be relative to how tightly you mount the lid, make sure the top is screwed on). | 【3M VHB Industrial Grade Adhesive Disks】Withstands harsh weather and impact, and seriously bumpy downhills, so you have no worries that the case can ever accidentally fall off of whatever it’s stuck to. Widely used for your mountain bike, scooter, motorcycle, skateboard, briefcase, construction equipment, camera etc. | 【Indestructible】Tested to survive a military standard 4x drop and heavy wheel crush(not just a lens. Please be assured)More durable than traditional air tag holders. | 【Discreet & Minimal Design】Nowhere show an logo or advertise it’s a tracking device. Screw-in design (vs. the pop-top), making it easy to assemble and easy to take apart when it's time to change the Airtag battery. Super simple to use and comes with everything you need to mount: 4 Unit of AirTag Case (which have the adhesive pre-attached)/ 4 Waterproof Silicone Cover/2 extra 3M VHB Tape/4 Wipe Kits/a manual (Not include Airtag).