A Pedal of Metal. This is the same type of Pedal you might find on a tattoo machine or as a damper pedal on an electric piano. The non-slip pad on the top and rubber bumpers on the bottom prevent the pedal from slipping out of place during use. If it opens, it's a simple switch and a big spring. This Pedal, however, has been described as "elegant and generous" and I think we have to agree.

Circuit Breaker 1P with 25A, 6kA and 240/415V, from Solera.