Muc-Off Dry Chain Lube is a durable, deep penetrating chain lubricant that is made to withstand extreme conditions that would destroy a regular chain lubricant. Muc-Off Dry Lube is a very versatile, dry-weather chain lubricant that has properties to ensure it is driven deep into the core of each chain link. You also don't have to worry, because Muc-Off Dry Lube is biodegradable, so it is safe for you, your bike, and the planet. When the bottle is almost empty, it can be refilled. Can be applied to chains, cables, shifters, and derailleurs.