Namsan Leopard Pattern LED Collar for Dogs Pets Puppy Doggie,Collar Light,Flashing Lights L Neck Size:20- 23 inch / 48-60cm, Width 1"/2.5CM Sexy and fashionable collar 4 flashing modes: fast flash, slow flash, steady on and off, Normally 60 hours steady light time or over 100 hours flashing time, Battery can be replaced Keep it dry please Namsan's order usually 7-15 days arrived(Not as Amazon page shows:14--28 working days)