Waterproof No Circuit Inner Design: This led dog collar is convenient to use. This item can be change for any shape because there is no circuit inside the plastic ring. Light would not be affected by bending or cutting, or dog bite. One Size Fits All Pet: Collar measures 70 cm, but can be cutted to any length using scissors to fit your small pet. 3 Light Setting Mode: Slow flash, quick flash and steady glow (Easy push button). Rechargeable Mini USB: This item equipment with a rechargeable line, it can connect any usb connector. Easy To Control: The LED flashing tube can be set to flashing or light continuously by means of touch switch. Durable and Tough: The whole plastic tube part can be rub, extrusion in any shapes which wont affective the light of this collar. Item Name: LED Dog Collar; Main Material: Plastic; Main Color: Green; Item Pipe Size: 70 x 1.2cm / 27.56" x 0.47"(L * D); Li Battery: 3.7V 80mAh; Weight: 120g / 4.23oz; Package Include: 1 x LED Dog Collar, 1 x USB Cable.