pf2e.fyi
From Pathfinder Lost Omens The Grand Bazaar, which isn't enabled.

Clockwork Heels

ITEM 7
RARECLOCKWORK
Price 300 gp
Usage worn shoes
Bulk L

This clockwork footwear features a marvelous mechanical heel built into the base to increase your speed. When you lean your weight onto your heel, a springboard triggers and pops out small metal wheels that propel you forward. You gain a +5-foot item bonus to your Speed.

Pathfinder Lost Omens The Grand BazaarOGL