Add a luxurious spa feel to your bath time with these brightly coloured aqua lights that will either float on the water, or can be stuck to the side using the attached vacuum suction cups. Not just for the bathtub, these lights can be used in or outdoors, in hot tubs, or ponds etc. Once switched on they will gently scroll through six colours until turned off again. Being a waterproof product, it takes quite a firm push to switch on, so probably difficult for children or the elderly. The lights have a large 9cm diameter and are produce a bright but calming light, creating the most wonderful relaxing atmosphere. 2 x spa lights includedeach light takes 4 x aaa batteriesapprox 9cm diameter, 5cm depthsuitable for indoor or outdoor use instructions for use twist the top and bottom section until both are separated, remove the battery cover and insert 4 x aaa batteries not included, replace cover, and retwist the bottom and top section together. To turn the light on, press the light firmly on the top using both thumbs, and the same to turn off.