Muc-Off Dry Chain Lube is a durable, deep penetrating Chain Lubricant and oil thats formulated to hold up in extreme conditions that would destroy ordinary chain lubes. Muc-Off Dry Lube is a highly versatile, dry weather chain oil that has state of the art penetrative qualities to ensure that the lube is driven deep into each chain links core. And theres no need to worry because Muc-Off Dry Lube is biodegradable, so its safe for you, your bike and the planet.