The image shows a set of silicone LED bike lights, one red and one white. These are often used as safety lights for bicycles. 
The lights are typically made of waterproof silicone material. 
They often come in a set with a white light for the front and a red light for the rear. 
Many models have multiple lighting modes, such as full light, slow flash, and fast flash. 
They are designed to be easily mounted and unmounted from a bicycle.