✓?What you get?1 air tag collar holder, 1 screwdriver, 4 silver screws, 4 black screws, and 1 transparent hard shell. Pay Attention: If you dog collar is only a strap which has no buckle, the traparent shell is no need for use, just put in the airtag, close the cover, and screw with the silver screw to fix, and the strap pass through the hole ; If you dog collar has buckle, please refer to the installation method 2, first put in the airtag, close the cover, and then put the collar, screw up with black long screws to tight the transpartent shell. If you have any question, please feel free to contact us. We are at your service 24 hours a day. ✓?Use Occasion?In Your Daily Life, When You Take Your Pet To Go Shopping, Play On The Beach, Mountain Camping, Travel, Etc., You Don't Have To Worry About Losing Your Pet Anymore. It can be used on dog collars, pet loop holder, Child's school bags, air tags dog cat tracker and all items that fit its size, and you don't have to worry about losing it. (Remarks:Inner hole width 1"/2.5cm,Suitable for 2.5cm rope). ✓?Anti-scratch and Shock-proof Design?Full Cover for Air Tag, soft stretchy and hard-wearing TPU material. There are raised parts at the four corners of the shell, which can play an anti-fall effect. ✓?Ultra Durable Airtag Holder? The rubber or silicone hanging air tag dog collar will often shake, and the Airatag will easy to drop out . Ours air_tag track dog collar holder are designed to be bolted on. With 4 special screws to close the case, your airtag will never fall off from the case. A special screwdriver (included)is required to open. ✓?Excellent Waterproof Performance?This Sichy Airtag Case air tag collar holder Includes waterproof structure and ring, you can put them in water. Its IPX8 certified waterproof performance can also protect your AirTag against water, sweat, and moisture.