[Durable Construction]Made with high-quality nylon webbing and zinc alloy hardware, this tactical dog collar is built to withstand tough conditions and resist wear and tear. [Compatible with AirTag]Designed to securely hold for AirTag tracker, allowing real-time location monitoring of your pet to prevent loss or wandering. [Adjustable Fit]Features an easily adjustable design that can be adjusted from 38-43cm in length, ensuring a comfortable fit for a range of dog sizes. [Secure Eagle Beak Buckle]Equipped with a zinc alloy eagle beak buckle that provides superior strength and resistance against pulling and impact. [Comfort-Focused Design]Lined with cotton for breathability and comfort, preventing overheating during extended wear. [H-Type Press Release]Incorporates a sturdy H-type press-release mechanism that's easy to operate yet secure against accidental opening. Specifications: Material: Nylon webbing, zinc alloy, silicone, diving cotton Size: 38-43cm x 3.5cm Compatibility: Designed for AirTag locator