Lizard Spit Slick Nutz is a nut slot/tension points lube which has NO petroleum, dries to a sealed gel and helps the string return-to-pitch. It also does not attract dust/dirt like grease based lubes. 100% organic. eco- safe, and biodegradable.Lizard Spit are committed to producing eco-friendly, non-toxic, non-hazardous, biodegradable and safe products for a variety of applications.