Three red LED lights can be set to flash or stay on, Easy to use heavy duty clip, Perfect for walkers and joggers. Complies with Prop 65. 2.75" L x 1.625" W x 0.625" H. Price includes a 1 Colour Imprint. Imprint area is 0.625" W x 0.875" H on Top. Call for multi-colour or multi-location imprints or for rush delivery availability.