Color Paddles - Ultimate Set - Includes Primary Mixing Colors, Diffraction Gratings, Polarized Filters and Diffusing Filter Color Paddle Set Contains: Primary Mixing Colors (3) RED, BLUE, GREEN Secondary Colors (3) CYAN, YELLOW, MAGENTA Diffraction Grating (1) 13,500 Line / Inch Double Axis (1) 500 Line / mm Single Axis Polarized Filters (2) Polarizing Filters Diffusing Filter (1) 3/8 White Filter - 63% Transmission