[QUALITY FABRIC]-- Our dog collars are made of high quality durable full top layer natural cowhide. The dog collar with the Apple case will definitely withstand dog play and won't tear or break easily. And with an upgraded flannel lining that won't strangle or rub your dog's neck, giving your dog a comfortable and soft wearing experience. Stay away from those fake leather, suede, low-quality material collars, this is the dog's favorite air tag collar[UPGRADED BRACKET]--Our Leather Dog Collars have a built-in kickstand to insert your Apple . We've upgraded and reinforced the bracket: the built-in bracket and tie are not only super glued, but also reinforced with a full range of sutures. And comes with two upgraded hardware buttons and a sturdy reinforcement strap in the middle. Five ways to protect your holder, never worry about your Apple falling off as your dog moves[Size Adjustment Upgrade]-- Our apple dog collars are available in L and S sizes and have been upgraded to size adjustment. Compared to older dog collars, we have added more pin buckles to maximize the collar's adjustment. Also, there are two advanced locking loops where the collar slides, thicker and stronger upgrade, they won't loosen easily and hold the extra protruding leash well, you don't have to worry about the dog pulling the collar off and chewing.[REAL-TIME GPS TRACKING]--Our pet leather collars are compatible with Apple , insert into this double buckle custom designed dog collar, you can track your dog's location in real-time no matter where your dog is playing- time to find it easily. In addition, our dog collar has a neck circumference of 3cm, which does not feel thick and bulky. We use genuine leather material that will not fade and will not cause damage or breakage to the Apple collar.