Ultra-bright LED front light with a separate red rear light. Easy attachment using the included Velcro fastener, designed for all retractable leashes in the Flexi New Classic, New Comfort and Design leashes (sizes S to L). Can be attached on either side of the housing (for right or left-handed users). Splash-proof. Comes with 2 AAA batteries and a decorative cover (to predict the Velcro fastener closure when lamp is not in use)