Anti Corrosion Fiber Washers, Fiber Battery Terminal Protector (3 Red and 3 Green),prevent corrosion around the battery terminals,
convenient , really very easy to use!

Features: 

Battery Post Shims prolong battery life, for use with 6 and 12-volt batteries.
Battery Terminal Protector with Premium Fiber material, fine workmanship, quick and easy to install. 
The removable of Anti Corrosion Washers' inner ring to fit larger terminals. 
Battery Terminal Washer with Red for + , green for - , very easy to use and distinguish.

Specifications: 

Material: Fiber.
Color: red and green 
Quantity: 1Pair.
Inner ring diameter: 0.79 inch/20 mm 
Outer ring diameter: 1.75 inch/44 mm 
Thickness: approx. 3 mm

Package Including:
3×Red Battery Anti-corrosion Washer
3×Green Battery Anti-corrosion Washer

Function:

The Battery Terminal Washers can prevent corrosion around battery terminals,help battery longer life, for use with 6 & 12-volt battery.
The Battery Anti-Corrosion Protectors fit for both top post batteries or cables and side post batteries or cables.