function onUse(player, item, fromPosition, target, toPosition, isHotkey)
	if player:getStorageValue(PlayerStorageKeys.delayLargeSeaShell) <= os.time() then
		local chance = math.random(100)
		local msg = ""
		if chance <= 16 then
			doTargetCombat(0, player, COMBAT_PHYSICALDAMAGE, -200, -200, CONST_ME_NONE)
			msg = "Ouch! You squeezed your fingers."
		elseif chance > 16 and chance <= 64 then
			Game.createItem(math.random(7632, 7633), 1, player:getPosition())
			msg = "You found a beautiful pearl."
			player:addAchievementProgress("Shell Seeker", 100)
		else
			msg = "Nothing is inside."
		end
		player:say(msg, TALKTYPE_MONSTER_SAY, false, player, item:getPosition())
		item:transform(7553)
		item:decay()
		player:setStorageValue(PlayerStorageKeys.delayLargeSeaShell, os.time() + 20 * 60 * 60)
		item:getPosition():sendMagicEffect(CONST_ME_BUBBLES)
	else
		player:say("You have already opened a shell today.", TALKTYPE_MONSTER_SAY, false, player, item:getPosition())
	end
	return true
end