Purple Aggressive Action Cam.

Pearl's Eliminator 2050 Series Bass Drum Pedals feature the world's only patented interchangeable cam system. There are 6 different color-coded cam options (4 included with every pedal and 2 more optional). Each cam option has a different profile that allows you to quickly adjust the power and feel to suit your individual playing needs. Changing the cam is as simple as pushing the release button and snapping another cam in place.