Slave pedal from a DW7000 double bass drum pedal, No idea how i ended up with one of these & not the rest. My intention was to add a spring rocker to the side and build a single pedal out of it, the spares are readily available from DW dealers. I simply don’t have the time and have far too many bass drum pedals so selling it cheap for somone else to do and make a bargain dw out of it. Chains got a bit of rust but some oil will sort that, the rest is all functional and solid, see pics for details