Bio Lube® Lubricant Pen .25 ozBio Lube Lubricant Pen is . 25 oz of a synthetic biodegradable lubricant which is safe for all handpieces. It is nontoxic, nonflammable and does not require the user to lubricate the handpiece after sterilization, eliminating common problems associated with sterilization. It reconditions bearing cages, extends turbine life and O Rings stay pliable. When used together, the Bio Lube lubricant and Bio Lube cleaner can extend turbine life up to 32 months.