(2 pieces, black + blue, tracer not included) AirTag Collar Holder, [fits into collar] [no pendant] Compact AirTag silicone case, compatible with AirTag. Perfect Fit:Fit AirTag like a glove and keep it secure. Center hole design can hear AirTag sound better and display personalized engraving Slip on Collar:Make the AirTag fit horizontally on the collar rather than hanging it on pets. Your dog's AirTag will no longer hang in food and water or get caught in objects Wearing comfort:Keep AirTag on the collar and do not disturb pets when they walk or run. Puppy will never chew or play with AirTag again. They don't even know it's there Compact Design:Molded from a single piece of silicone and featuring a loop that slips through the collar, this case is smaller and lighter than other AirTag holder in the market Quality AirTag Case:Adopting soft and smooth silicone, this Airtag necklace holder is strong and durable. Compatible with pet collars with a width of 5/8'' to 1''