24"x16" Flashing Illuminated Erasable Neon LED Writing Board Menu Sign Featured with Anti-broken, Anti-Scratch, durable screen LEDs: Best-in-class, with light emission up to twice as bright as other products Energy Efficiency: Environmentally friendly. Components are recyclable and LEDs use minimal electricity compared to other lights. A complete set includes 8x Fluorescent Marker Pens (8 colors), 1x Wiping Cloth, 1x Power Adapter and 1x USB Controller