I used this only once, setting it up in a pet house. I have washed and disinfected it before listing it, but please consider this before purchasing. * Power on confirmed * Reversible, with 38°C and 30°C options * Main unit is washable * Size: 23 x 16 cm * Purchase date: October 2025 * Instruction manual: Included ◎ If you don't need the box, I will discount it by 200 yen. Please comment beforehand. Thank you.