Empire Vitamin E is an outstanding synthetic lubricant for paintball markers. This is a Premiere paintball marker lubricant. It is designed for all climate use, in grease-lubricated markers, plus inline & low pressure regulators. This Synthetic long lasting formula prevents o-ring wear, swelling and deterioration. Provides the lowest coefficient of friction to reduce and eliminate bolt stick and first shot drop off (FSDO). Manufactured by Empire.