What is the purpose of the small black tapes included with the S900 Kit?-And what about the small white washers?

the magic tap is for the battery.
And as for the small white washers, could  you pls take a shot of it to us for look?

Not able to post picture. -However, the tapes I'm referring to (there's 4) are 5cm long attached to paper to be peeled off.
The white washers (there's 8) are 8mm in diameter.

The tape is to cover the pin connectors for the motor connectors that attach to the flight controller. Think the others are used on the landing gear conne tors

If you are talking about the black stripe tape that is to help with the alignment of the GPS puck.