Rubber contact strip, 12-note. This strip contains carbon contacts inside each "bubble". When a key is depressed, the key presses down on the bubble, and the carbon makes contact with the circuit board (the keyboard "contact board"). This replacement strip is Yamaha part number VU328400 and VU328402.
Click here for our blog post about troubleshooting and replacing contact strips.
This item is NEW.
Click on photo to enlarge