Mix Ratio Insert, Plastic, For Use With PPG Paint, 3M(TM) Paint Preparation System, 650 mL Cup Used with 1:1:1:1, 1:1.5, 2:1:0.5:1, 3:1:1:1, 4:1:1 Ratios, 3M(TM) Tri-Scale, Package Quantity 100