From Rainbow Crate October 2020 box. It’s sort of like a coaster with a heating element built-in. When plugged in, it can keep your warm drink atop it from going cold. It features an empowering quote from Felix Ever After by Kacen Callender on the front/top side. Out of its original packaging, but clean with no signs of wear - I think I tried using it once or twice before storing it away. I'd recommend this more as a display piece for fans of the book/quote than for practical use. (If you’re in the market for a mug warmer, there are more powerful ones out there.)