Vivaglory Nylon LED Dog Night Safety Collar Flashing Light up for Pet Cat Avaliable in 7 colors & 3 Sizes HIGH VISIBILITY & SAFETY: The ultra-bright led collar can make your dog more visible at night , and the superior durable nylon maximum strengthen your beloved dogs safety PERFECT FIT: Adjustable dog collar and quick-release buckle ensure the perfect fit; The D-ring on the Collar can match a leash 4 FLASHING MODES: Change the light between steady mode, four flashing modes with rapid flashing, slow flashing, solid flashing and off can be achieved BATTERY INCLUDED:2 x CR2016 batteries included; The battery is replaceable LIFETIME GUARANTEE: 100% MONEY BACK GUARANTEE: Vivaglory is dedicated to address any product and service issues and is committed to delivering an excellent experience for all buyers. Any questions, please kindly contact us, we will give you a satisfied answer