Feature:1. [FOR BATTERY PROTECTION] Can prevent corrosion around battery terminals and prolong battery life, suitable for 6V and 12V battery use.2. [10PCS IN 1 SET] Including 10pcs battery terminal washers, sufficient in quantity, which are easy to use and replace.3. [RED AND GREEN] The red gasket is used for the positive pole and the green gasket is used for negative pole, easy to distinguish.4. [STANDARD SIZES] These fiber washers have standard diameters with removable inner rings to fit larger battery terminals.5. [FIBER MATERIAL] Made of excellent fiber material with good softness, and provide good protection for battery terminals.Specification:Item Type: Fiber WashersProduct Shape: RoundOuter Diameter: Approx. 44mm / 1.7inInner Diameter: Approx. 20mm / 0.8inDisassembled Inner Diameter: Approx. 30mm / 1.2inColor: Red + GreenPackage List:5 x Green Washers5 x Red Washers Note:Color: Positive and negative color coding, red for +, green for ‑, easy to distinguish and use.