Discmagic Premium 16oz Blue #1 Polish Compound (JFJ Easy Pro, Double Arm, Single Arm & Armless Compatible) Improved Formulation Provides Better Efficiency More effective with less evaporation than OEM products Premium Formulation provides Higher Effectiveness at a Lower Cost. Compatible with All JFJ Easy Pro (Plus) Double Arm, Single Arm & Armless Units Water-Based, Safe for both you and your unit. 30-Day Satisfaction Guarantee