![Self Supporting Cones 04](http://chesapeakeceramics.com/cdn/shop/products/4047_97efc14c-5d7b-4753-9e41-bacbac39a03e_250x250.jpg?v=1635533548)
Self Supporting Cones 04
SKU SSB04
Electronic controllers allow firing to a temperature (and even a cone number). The controller uses a temperature reading measured by one or more thermocouple(s) placed through the refractory wall of the kiln. A Self-supporting witness cone will check whether the controller is firing accurately.
Box of 25
Box of 25