Description Compared to similar sellers, we have designed, rigorously tested, and continuously improved our LED safety running lights to guarantee- quality at an . Our LED lights includes high- quality super bright LED Running Lights ( 2x ) for high- visibility, 4x batteries, 2x straps ( for mounting the lights to collar, leash, bike, stroller, and ), and 1x screw driver to replace batteries. Features - Color: Red& amp; Blue. - Material: ABS. - Size: approx 5. 6* 2. 6* 1. 8cm/ 2. 2* 1* 0. 71 inch Works right out of the box, one- design. attach and detach your LED clip on accessories so quickly and securely- without even noticing you have it on! hook the lights onto your belt,,, shoes, pockets, running gear, backpacks,, collars/ leashes, armband, or anywhere else on your clothing. EXCEPTIONAL DESIGN: Slim, lightweight, compact, and super bright safety lights with two eye- catching modes of illumination; steady and strobe ( flashing ). Powered by two coin batteries ( ), lasting up to 70 hours ( steady mode ) or 96 hours ( strobe mode ). Works right out of the box, one- touch power design. Easily attach and detach your LED clip on accessories so quickly and securely- without even noticing you have it on! Easily hook the lights onto your belt, jacket, bicycle, shoes, pockets, running gear, backpacks, helmet, dog collars/ leashes, armband, or anywhere else on your clothing. High visibility and reflectivity, stay cool and safety for night running, cycling, jogging, walking dog, camping and other outdoor activities and sports, avoid potential danger. Works right out of the box, one- touch power design. Easily attach and detach your LED clip on accessories so quickly and securely- without even noticing you have it on! Easily hook the lights onto your belt, jacket, bicycle, shoes, pockets, running gear, backpacks, helmet, dog collars/ leashes, armband, or anywhere else on your clothing.