Golem-Skin Gauntlets is a uncommon Artifact — Equipment card from Mirrodin (MRD), collector number 181. Current market price: $0.27 (foil $1.31), TCGplayer market prices via Scryfall.
Equipped creature gets +1/+0 for each Equipment attached to it. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)