One of the special characteristics of silicone rubber heaters is that they are highly flexible. With Kawai Corporation's unique technology, these heaters can be made into a wide variety of shapes. This heater can be shaped freely as your needs require, including holes and notches. The heating surface is heated appropriately. The minimum size is 3/5 sq. in., with a maximum size of 35.43" x ∞. Although there are considerations to take into account such as watt density, this heater can withstand a temperature of 430ºF (220ºC) for 400,000 hours of continuous use.