Sometimes you just want to casually stretch your legs a bit, not get geared up for a full-on spin session.
This is a pedal attachment for the Peloton bike* that screws onto the "underside" of the pedals, replacing a plastic piece there using 4 screws that ship with the bike. Now you have a flat pedal, but one that doesn't interfere with the LOOK Delta "correct side" of the pedal.
Other options (replacing the entire pedal with a toe cage, or purchasing a toe cage or flat pedal that attaches using the LOOK Delta system) would have been less convenient for quickly switching between Peloton shoes vs. street shoes or barefoot, e.g. to accommodate different user preferences in the same household.
This has lowered the activation energy to get me moving a little more, and I hope others can use it too! Please be careful not to bike too hard using these since, as with all flat pedals, your foot could slip off more easily.
*Can personally confirm fit on the Bike+, should likely fit on the original Bike as well