Add a little flair to your e-collar with our BioThane collars. Comes with a screw on one end to add your receiver. Flat Head Screw Driver required for assembly. Handmade with top of the line materials in Gilbert, Arizona, USA. *Transmitter (e-collar) not included! Details: Flexible BioThane (stretch, water, mold, mildew & UV resistant) Rust & Corrosion Resistant Hardware 3/4" or 1" wide strap (Check your receiver for size needed) Metal buckle for easy on and off (500lb break strength) Elastic bungee for the perfect fit Fits Neck size: 15"-25" with no receiver attached. It may loose a few inches depending on your specific device. Please make sure to measure your receiver strap width opening for the strap to feed through. E-Collar Accessories Available for purchase separately: Mini Educator® ET-300 E-Collar Strap Remote Wristlet Remote Skin