After many years in the abrasive industry specialising in wood, marble, stainless steel and the automotive polishing industry. I have accumulated a lot of experience in what works and what does not when making a superior product. I give you my newest addition to guitar care, the Merko LO12CW . An ointment specializing in guitar fingerboards. Based on wax and the union of certain oils, without the use of chemicals and silicone. Won’t harm your precious instrument or the environment.