OEM Honda rubber base gasket for the smaller tail lights.
Fits in between the tail light and the bracket .
***Discontinued and hard to get now ***
Fits these models with the SMALL tail light:
Z50 1969-78, CT70 69-71 , CT70H, SL70 , SL90, SL100.
DOES NOT FIT THE CANADIAN Z50'S WITH THE LARGER 3 BOLT LENS