K&H Pet Products Thermo-Perch Medium 13" x 1.25" x 1.25" - KH9011 Protect exotic birds from the harmful effects of air conditioning and cold drafts. Thermostatically controlled to an optimum body temperature. Made of sturdy scratch and bite resistant non-toxic plastic. Uses harmless, 12-volt, low voltage electricity to heat the perch. Safe, consistent source of warmth, stabilizes the bird's environment.