Naigōgaijū

Naigōgaijū (内剛外柔,An Iron Hand in a Velvet Glove) is a magical item and weapon developed by the dark guild Hakkōichiu.

Description
Developed for the purpose of "breaking" demons. The Naigōgaijū takes the form of a pair of gauntlets composed of a magical alloy. Sporting two skulls on the back of the gauntlet hands and two metal spindles on each arm.