Features: It is waterproof, so can be used inside or out of water. Energy saving energy with higher efficiency. It is comfortable, humanistic and high-performing comprehensive. Suitable for decorating a flower vase, cupboard, aquarium for tank, pool, party, taprom and so on. Size: About 0.39x0.59in. Specifications: Item Type: Mini LED Waterproof Light Material: Metal Color: Purple, Blue and Red (Random changes of three colors) Size: Diameter: 1cm/0.39in (Approx.) Height: 1.5cm/0.59in (Approx.) for DC Input: 3 Pcs LR41 batteries ( included) Available Time: about 10-12hous Note: Please remove plastic insulating sheets on the battery before used. Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X Mini LED Waterproof Light (No retail package)