From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Ensnaring Disk

ITEM 7

CONSUMABLE MAGICAL TALISMAN

Price 70 gp

Usage affixed to a shield

Bulk —

Category talisman

Activate (concentrate)

Trigger You use the affixed shield to Shield Block a melee weapon attack

Requirements You are an expert in Athletics.

This coin-sized metal disk is inscribed with arcane symbols and mounted on the inner surface of a shield. When you Activate the disk, the triggering weapon momentarily sticks to your shield, allowing you to attempt to Disarm it from its wielder with a +2 item bonus. If you roll a critical failure on this check, you get a failure instead.

Pathfinder Treasure Vault (Remastered)ORC