This is a set of replacement cams for Pearl's Eliminator REDLINE Series foot pedals. 〈RED - Radical Progressive Cam〉 An eccentric cam with the rotation axis offset from the center, providing a traditional action that responds to delicate footwork. 〈BLUE - Progressive Cam -〉 An eccentric cam with the rotation axis offset from the center, offering a light feel at the beginning of the stroke, with gradually accelerating speed. 〈- Oversized Linear Cam -〉 A circular cam that is one size larger than the black cam. Characterized by a generally light action. ※ Exclusively for the Eliminator REDLINE series. Unused product.