[What is Kotatsu?] Kotatsu is traditional japanese coffee table with heater. Best in cold climate, also can be used as a coffee table in summer. [Size & Appearance] 31"D x 31"W x 14.2"H Elegant wood-grain design Top board. Kotatsu futon (blanket) NOT included. [How to use] Cozy & Comfortable. Perfect to take a nap and relax. Temperature can be adjusted. Can be seated up to 4 person. [Requires Assemblying] Easily assembled without using any tools. [Power Design] Available in US-standard outlets without converter. Warmed in 10 to 15 seconds after turning switch on. Power fuse covered by heat-resistant resin to reduce risk of fire. This Kotatsu Heater Square Shape Table　has AC120Voltage,American Home Living. Made of a High Quality Natural Solid wood and Natural Wooden Ash wood veneer Table Top with a Satin Finish. Temperature Control Knob and On/Off power switch cable plug included. *This product is Easy KD Furniture assemble and Table Top Removal for Kotatsu use. *Product Origin: Made in China. This product is very popular in Japan.