The Light is made from PC and ABS plastic. Simple to charge and simple to use. Simply remove the to expose the USB plug for charging. the external light to turn on and off. This light can be used both inside and out - perfect for windy and provides a light for up to 3-4 hours. This product is powered by a USB rechargeable, internal 120 mAh polymer lithium ion battery which cannot be replaced. Feature - Color: As Shown. - Material: ABS+PC. - Size: 7.2 x 3 x 3cm. - Any decorative occasion, It is a good your friends,relations,children or yourselves for Halloween, Christmas day, Birthday Party, Wedding Decor,also as a lovers. - Make your own light, or use with other cocktail bottles; Fits kitchen, cool accent dining lights, or warm holiday table lamp. All without drilling. - Perfect Design, Perfect designing for all year season. It is water resistant and can be placed directly into the water.And it could Create Romantic, Peaceful and Warm Atmosphere After Decoration. - USB Charge, every single light included a battery can let the light run 3-4hours. With USB charge port, you needn’t to consider about battery problem anymore. Package list: 1 x USB Light