Up for sale is a pair of used Footblaster drum triggers in good condition. Both are fully working, and I have no issues with either one.

These drum triggers mount under your pedal footboard and pick up each hit on your acoustic drums and send a signal to a trigger module or drum brain. That lets you layer samples, replace sounds, or run a hybrid acoustic/electronic setup, which is useful for live shows and recording, especially for heavy styles like metal. These are sold as a matched pair, so you can attach one to each pedal for double bass setup.

Condition: Good. Normal wear (scratches, dings). Both have been tested and work.
Footblaster Triggers are universal, pedal-mounted electronic drum triggers designed to capture kick drum hits directly from the footboard rather than the drum head.

• Mounting: They attach underneath the footboard or heel area of any bass drum pedal using double-sided tape.
• Mechanism: The footboard strikes a metal and foam-padded transducer surface (housing a piezo element) when pressed down, sending a clean signal through a 1/4-inch cable to a drum module.
• Adjustment: The underlying metal plate can be bent or tweaked to adjust the height relative to the pedal clearance.