Hello, dear friend. Welcome to my store. Packing list: 50pcs balloon lights Specifications: Size: 1.4CM Material: environmentally friendly plastic Product color: transparent body Available colors: multicolor, white, warm white, blue, red, green Power supply: AG3 Electronics Feature: [Widely used] Can be used for balloons, paper lanterns, pumpkins, crafts, glass bottles, party, wedding decoration, Christmas, Halloween, disco camping, barbecue and any other imaginative purposes [DIY]-Use mini led lights to design the shapes and letters you need to create a warm and romantic atmosphere. [Minimum size] -1.5cm / 0.6inch X 1.5cm / 0.6inch, easy to hide anywhere. [Round Shell]-Compared with other shapes, it will not scratch the balloon. [Waterproof]-Can be used for water or drinking water, suitable for indoor/outdoor use. [Bright energy saving] Bright energy saving (including battery) can be used continuously for more than 24 hours. [Easy to use]-Just insert a white card to turn off the light, then pull up the card to turn it on, and it will instantly light up your night. Tip: Multi-color flashing, single-color light only keeps on, not flashing (don’t forget to turn on the balloon before opening it ).