Primary Slip Washers
If you are ordering from the states order from Ride Fast Company here:
https://ridefastcompany.com/products/whiskey-throttle-polaris-primary-slip-washers
These washers are coated in an extremely durable anti friction coating.
They are designed to give the primary spring a surface to slide on as it compresses and decompresses with the closing and opening of the clutch
Using these washers will greatly increase the life of the Polaris and Arctic Cat primary springs!