AAA-Shocks (Analogstick Aim Assistance Shock Absorbers): Famous Swiss F.P.S. Controller Add-On Perfect for first person shooter games like Battlefield and Call of Duty Effective shock absorber: Swiss Analogstick Aim Assistance Shocks Absorbers for FPS Games (AAA-Shocks) increases your analog sticks resistance which allows for much smoother movements Precise aiming and steering  precision increases up to 20% Easy to use  no screwing or tinkering / Fair play  no cheating device It works! Check out amazon.de or AAA-Shocks.com for more customer reviews.