It is worthwhile to buy this light because it can achieve low power consumption, high brightness and long term use. This LED light is a good decoration for balloons and hand-held paper lanterns, you can choose the right color according to your preferences and specific use of the environment to meet the decorative match. Made of high quality PP material, this product is lightweight and durable to use. The length of the product is 3.3cm, the width is 1.4cm, and the height is 1.2cm. It has a switch, placed in more than 10-inch balloons filled with helium can float, can be used for balloon decoration, birthday parties, weddings, wishing lights, bars and other festive venue decoration. Item Name: Balloon Light Material: PP Battery: 2 x Button Batteries(Included) Features: High Brightness, Durable, Waterproof Size Details: 3.3cm x 1.4cm x 1.2cm or 1.3" x 0.55" x 0.47" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. The quantity is about 50pcs, due to manual calculation, the quantity might has 1-5pcs more or less, hope you can understand, thank you. Package Includes: 50 x Balloon Light