Double pedal
1. pedal is fit for the good base user.
2. The surface red color is made by Anode Treatment.
3. The logo is made by laser.
4. The aluminum parts is made in a type of high-intensive aluminum that used in aircraft.
5. The producing of the aluminum parts is made by CNC that ensure the precision.
6. use several bearings in the universal coupling that ensure smooth and no gap. 
7. design a special spring and cam system in the column which gain fast return after hit and force.And the turning the knob clockwise will bring faster return and bigger froce.Surely you can adjust the right and left pedals with different force. 
8. The hammers can be adjusted up or down by using our key.
9. The hammers’ sticks can be adjusted some angle by the arrow aim at the different scales
10. use many high class bearing to lessen the rub and sound.
11. attach many tools so that the user can adjust some parts.
12. It will be better using the Anti-slip stickers on the carpet.