Magic item, UA 100. Vague in its description. Use the following rules.

• One missile can be caught per segment, per open hand.
• No throw is required to catch a missile; catching is automatic.
• For purposes of these gloves, a two-handed weapon can temporarily be held in one hand in order to catch a missile with the other hand, but only if the catcher is not attacking with their weapon on that segment.
• If the missile is a thrown weapon OR if the catcher happens to have in their other hand an appropriate firearm (e.g. a bow when catching an arrow), the missile can be returned as an attack on the following segment. This does not count as the catcher's attack for the round.
  • If both hands are free and both hands catch a thrown weapon in a single segment, both weapons can be returned in this way on the following round.¹⁾
  • If an arrow, bolt/quarrel, stone, or bullet is caught and no appropriate weapon is at hand for the return attack, the missile cannot be returned.²⁾
• Missiles cannot be caught while casting a spell with a somatic or material component, or at any point prior to casting such a spell on a given round.