From Pathfinder Lost Omens The Grand Bazaar, which isn't enabled.

Raining Knives Snare

ITEM 10

UNCOMMON CONSUMABLE MECHANICAL SNARE TRAP

Price 170 gp

Usage held in 1 hand

Bulk —

Category snare

As soon as a creature enters the snare's square, it unleashes a barrage of knives at the creature from all directions, dealing 11d8 piercing damage (DC 29 basic Reflex).

Pathfinder Lost Omens The Grand BazaarOGL