Designed to fit into matte boxes that conform to arri r2 design standards the tiffen multi rota tray is a single geared rotating tray that can be used with a geared 138mm circular polariser filter and a 4x565 circular polariser filter simultaneously this tiffen mrt kit contains 1x tiffen multi rota tray 1 x 138mm circular polarizer filter and 2 x 4x565 circular polarizer filters