This bright collar features a flashing LED light with three fun settings: quick flash, slow flash, and steady glow. Switching between modes is as easy as pressing the control box, so you can pick the perfect glow for any adventure. Made with a durable plastic clasp, it's built to last, and the included CR2032 battery means you're ready to go right out of the box. Ideal for increasing visibility when out walking on those dark mornings and evenings. The Flashing Collar features a durable plastic clasp and a flashing LED light with an easy to use switch. Directions: Carefully measure dogs neck and check measurements on listing for the best fit. Only clip your lead to the metal lead ring. Not to be used in conjunction with tie-out stake. Wipe clean only, if your collar becomes ragged or torn dispose and replace. Outer fabric: 100% Polyester (80% of total product weight) Filling: 100% POM (15% of total product weight) Buckle: 100% Iron (5% of total product weight). Please follow the care instructions on the label of the product. Caution: Proper supervision is advised when playing with all toys to ensure no accidental swallowing. Toys and bedding should be regularly inspected to ensure there is no damage. If any damage is seen the toy should then be discarded and the bed repaired.