The Serial Number for the TD-20 is located on the underside or "bottom" of the unit. It contains 2 letters followed by 5 numbers- i.e. (ZR90607). If you are sending in your warranty registration for the entire V-Pro-Series TD-20S BK set, use the TD-20's serial number only.
Note: It is not necessary to list serial numbers for each pad or cymbal.
