PAD CUP HEATEROur Pad Cup Heater is one of the most practical and time saving tools to come into the industry in a very long time. Used worldwide by repair technicians and manufacturers, this versatile, easy to use tool is guaranteed to significantly speed up pad work, as well as prove useful in various other types of woodwind repair. INSTANT HEATING: Hold the graphite electrodes up to the key cup and squeeze the palm trigger. A 9 10mm key cup (clarinet upper joint