High Tech MS-5 Fastener for Automatic Pet Door Opener

Introducing the universal collar attachment for the High Tech MS-5 automatic pet door opener. The High Tech MS-5 Fastener features a flexible body for easy insertion and removal of the MS-5 beacon, which is double-riveted to a Carbon Fiber Nylon Clip. The J-Clip design fits over any collar type, including martingale designs. With the MS-5 Fastener, you'll never worry about the thin tab on the MS-5 beacon breaking or needing zip ties to keep it attached. Made in America and warrantied for life!