Indestructible Knob for FX51 SensorTired of knobs breaking in your props? Simple potentiometer style knobs were not designed for the harsh world of escape rooms and need constant replacement. We created the Indestructible Knob to solve this problem once and for all! This knob will stand up to the worst abuse your players can dish out. Built from a 1 2" steel shaft, an aluminum knob, and a 6 6 nylon engineered plastic housing, this thing is tough and can withstand hundreds of pounds of