Efficient thermal cycling Shrink STB-1245 / STB-1845 / STB-1265 / STB-1865 Features: 1, hot air circulation system with integrated design, fast heating. 2, using solid-state relays and PID control, temperature tolerance of ± 1 degree. 3, using a metal heat pipes, and durable. 4, the heater uses a unique drawer design for easy inspection and replacement of heating pipes. 5, the inverter control the transmission speed. 6, solid activity roller, high temperature silicone casing. 7, inverter control the fan speed control hair dryers, hair flow can be adjusted according to the product. 8, both sides of the hair wind adjustable, so that products meet the best contraction effect. 9, 100mm thick insulation layer can effectively reduce heat loss and save energy.