Compatible: for car, vehicle, RV and boat, preferable fit for standard top post battery (19 mm cone/tapering positive & 17 mm cone/tapering negative).
Purpose: shims used for repair of worn, damaged or undersized battery posts, provide a steady secure conductive electrical connection of terminals.
TRIMMING To FIT: LEAD shim thickness is 0.5 mm +/- (flexible and easy to trimming), the shim can complete cover the 19 mm cone/tapering top post battery positive, NEED to TRIMMING To FIT the posts need to repair.
Fiber Washers: to prevent corrosion around the battery terminals, prolong battery life.
Package Includes: 10 piece SAME size battery post terminal lead shims, 12 piece (6 pairs red/black) battery terminal anti corrosion fiber washers.