3COINS Pet Kotatsu (Heater Not Included) Kotatsu with buttons to create an entrance, approximately 100cm in diameter, perfect for pets. I bought this last year, but my pets didn't like it, and it was a little too small for them to fit in, so I put it back in the box after about a week and stored it. ✱ Please refrain from purchasing if you are concerned as it has been assembled once. ✱ The futon has been cleaned with a lint roller. ✱ Box and instruction manual are all included. ✱ This item does not include a heater. 【Product Overview】 - Type: Kotatsu - Size: Approximately 100cm diameter, legs 30cm - Contents: Legs x 4, Middle board x 1, Top board x 1, Futon x 1 - Features: Buttons to create an entrance