From the folks who invented modern glass cutting (in 1874), this glass cutting fluid was designed specifically for the Fletcher-Terry "Gold-Tip" Designer II glass cutters, but can be used with any brand cutter. Extends the life of your cutter. Environmentally safe, non-toxic, 100% biodegradable, washes off with soap and water. Non-flammable, non-corrosive, non-staining and non-drying. 4 oz. bottle.