Set of 4 bicycle lights. Everything in the first image is included. The flashlight-type lights that attach to the handlebars are all the same, and also have LED flashlights on the side, which can be used as a rear warning light. Two of the mounting brackets are lever-lock type, and two are snap-on type. Please check the images. The flashlights blink red and blue alternately. The front lights also have a focus adjustment. Please note that they are not waterproof. Power is supplied via USB-C, and only the cable is included. The battery level is displayed as a percentage, so you can use them with confidence.