【Need to assemble】Each marquee letter are pre-cut frame with slots, 1) Match the slots on the board and put all boards together by hot glue. 2) Screw the bulbs on the board and install 3 AA batteries. ( Noted: Glue gun and batteries are not included) | 【Highlight of your Party】Marquee light up letters are 3 feet tall / 36 inches / 91 cm. Large light up letters and marquee numbers will serve as the attractive finished point of your birthday party, graduation party, engagement, proposal, anniversary, wedding decorations, baby shower event decors. | 【Multiple options for DIY】"&ABCDEFGHIJKLMNOPQRSTUVWXYZ" 27 mosaic alphabet balloon frame for you to freely customize your party theme: BIRTHDAY, OH BABY, MARRY ME, LOVE, XMAS, NEW YEAR, etc. Large marquee letters and marquee light up numbers can decorate any of your romantic party and celebrating occasion. | 【Package Includes】A set of light up letters for party containing the pre-cut letter frames, a light string with several bulbs, assemble instructions. Detailed assembly guide can help you install and use the large cardboard letters. | 【High quality and Good customer service】The 3ft marquee letters are made of strong foam board, which is not easily deformed, solid and durable. If you are not satisfied for any reason, please feel free to contact us and we will try our best to provide a satisfatory solution.