The Next Level of Control Key Features: Chic and Comfortable: The sexy black faux leather collar with a brass buckle closure looks amazing on any neck! It also has a soft inner lining that brushes gently against the wearer's neck. Tracker Compatible: A pocket on the collar is specifically designed to snugly fit any small, round-shaped tracker. Adjustable: Use the nickel-free buckle to adjust for a perfect fit. Faux Leather: This sleek, faux leather is made out of polyurethane (PU) and is vegan-friendly. Take the next step in your Dominant/submissive dynamic and give them a collar that really means something! This collar not only can be locked to be kept on until the submissive or slave's Master or Dom releases them, it also is designed to give the Dom a way to track their collared sub! The round pocket is designed specifically for any tracking device that is approximately 1.25 inches in diameter or less. Made out of vegan-friendly, black PU leather, this sleek and durable collar is built for long periods of wear. The brassy, metal buckle closures are nickel-free for sensitive skin. Is your pet the type to wander off? Do you give your collared submissive tasks but they don't always do what they're told? Do they run late to appointments and lie about how far away they are? Maybe you want to make sure they stop going to their favorite bar, club or donut shop. Maybe you just want to show even more control over their life and they want a way to submit to your power a little more… It's also possible that your gagged, hooded submissive wandered off and got lost at a convention! Don't worry about it; now you can track their location wherever they are from your phone! Slip the tracker in their collar, lock it to make sure it stays on, and now you'll be able to track everywhere they go and verify their whereabouts. Welcome to the next level of Control. Tracer Tracking Collar Specs: Measurements: Adjusts from 14 inches to 16.75 inches circumference. Strap width: 1.5 inches. Materials: PU leather, metal Color: Black Note: Tracking device and lock sold separately.