Features: 1.DURABLE MATERIAL: The light up wine cups are mainly made of premium clear acrylic with smooth surface and light weight for your comfortable use. 2.BATTERY POWERED: Each wine glass comes with 3 button cell batteries to power the internal LEDs, which are easy to power and replace. 3.ADJUSTABLE COLORS: Each press of the switch adjusts the color once, so you can light up your wine glasses with one of 7 different colors, making it easy for each party guest to identify their drink. 4.APPLICABLE SCENARIOS: There are many occasions for you to use the light up cups, such as family gatherings, holiday parties, beach parties, proms, birthday parties, wedding celebrations, engagements, dates, bars, restaurants, etc., leaving you with precious and unforgettable memories. 5.APPROPRIATE SIZE: The LED wine cups with appropriate size for your palms, neither too big nor too small, suitable for most people to hold. specification:Item Type: Flashing Wine Cup Product Material: Plastic, Acrylic Usage: Perfect for Cocktail Parties, Birthday Parties, Backyard Barbecues, Featuring Super Bright LED Lights That Will Liven Up Any Party Or Event! Battery: 6x 160mAh LR44 Button Cell Batteries (Shipped with Built in Batteries) PackageList: 2 x Cup Body 2 x Cup Handle