King's Rock ( おうじゃのしるし King's Symbol )
Artwork/sprite
General
Buy For:	Can't be bought
Sell For:	50
Type:	Hold
Generation:	II
Bag Image
Description May make the foe flinch. (HOLD) II An item to be held by a Pokémon. It may cause the foe to flinch upon taking damage. III An item to be held by a Pokémon. It may cause the foe to flinch when the holder inflicts damage IV An item to be held by a Pokémon. When the holder inflicts damage, the target may flinch. V

A King's Rock is an item introduced in Generation II that allows Poliwhirl to evolve into Politoed and causes Slowpoke to evolve into Slowking when traded. This item also raises chance of causing opponents to flinch by 11.7% with most attacks without secondary effects.