MUST-HAVE DOG COLLAR CHARM / SAFETY LIGHT ACCESSORY FOR OUTDOOR ACTIVITIES AT NIGHT - Perfect for finding and keeping track of your dog. Ultra bright, slim, and lightweight LED safety lights (2 pack) in bright blue color with 3 flashing modes: steady, slow flash, and strobe. Perfect for dark day / night outdoor sports and activities like running, biking, hiking, camping, dog walking, cycling, jogging. VALUE FOR MONEY, INCL. FREEBIES - Compared to similar sellers, we have designed, rigorously tested, and continuously improved our LED safety running lights kit to guarantee top-notch quality at an affordable price. Our LED lights kit includes high-quality super bright LED Running Lights (2x) for high-visibility, 4x CR2032 batteries, 2x velcro straps (for mounting the lights to dog collar, leash, bike, stroller, and more), and 1x mini screw driver to easily replace batteries. EASY & DURABLE - Works right out of the box, one-touch power switch 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. WEATHER PROOF & EXCELLENT BATTERY LIFE - Rain or shine, summer or winter - any weather condition, any time - enjoy enhanced visibility and comfort knowing you'll be safe and secure at any time of the day with our weather resistant gear. Excellent batteries included (4x) with a battery life of up to 100 hours and beyond.