It's referencing a glove that was central to the plotline in some of the Avenger movies. I started losing interest in marvel comics movies before the glove appeared, so my knowledge about it is limited. But here is what Google AI says about the infinity gauntlet:
The Infinity Stones glove, known as the
Infinity Gauntlet, is a powerful artifact in the Marvel Cinematic Universe (MCU) used by
Thanos to collect all six
Infinity Stones (Space, Mind, Reality, Power, Time, Soul) and wipe out half of all life, a pivotal element in films like
Avengers: Infinity War and
Avengers: Endgame. A practice version appears in
Avengers: Age of Ultron's post-credits, and a nanotech version (the
Nano Gauntlet) is created in
Endgame for the Avengers to reverse the Snap, though it causes severe damage to its wearers.
