Rotary Motion Sensor Replacement Washer
This is the same washer that is included with the Rotary Motion Accessory Kit.
WARNING: This product can expose you to chemicals, including formaldehyde, which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov For more information, see www.P65Warnings.ca.gov
User Manual: https://www.vernier.com/manuals/rmv-wash/
Warranty: 5-year limited warranty