Radiant floor heating kit. Includes: (3) 3x3ft 120v mats + (1) 18" wide mat (between 2-3ft long); (3) water barrier mats, and (1) ~40sqft roll of Underlayment. All of this can be cut to whatever size you need. Max 10A. No thermostat included. Sadly none of this came with a brand label, nor model number, nor install guide, so you'll want to be confident you know what you're doing.