Light Up Collar: This dog collar has two bright LEDs and an integrated optical fiber for 360 degree visibility on walks and other activities at night Quick Collar Charging: On a single charge, the NiteDog collar stays illuminated for 6 hours and 30 minutes and recharges in just 1 hour and 15 minutes Water-Resistant Dog Supplies: This light-up collar will keep shining through inclement weather and ruff-housing in rain or shine, so your furry friend can stay safe Collar with High-Quality Buckle: The dog collar features an adjustable belt-buckle style closure made of brushed black metal for easy access About Nite Ize: Our inventor-driven products organize your life, protect your gear, light your way, and creatively solve everyday problems