4 oz. Liquid Wrench light machine oil, no mess, essential lubricant ideal for small motors and tool maintenance. Leaves no gumminess and prevents rusting. Convenient dropper bottle applicator. Premium ISO 22, 5 to 10-weight non-detergent machine oil. Lubricates and protects metal parts against wear, tarnish, rust, and corrosion. Protects small motors, gears, typewriters, sewing machines, locks, casters.