Martyr Anodes, Streamlined Shaft Anodes with Stainless Steel Slotted Head .5 inch ID Zinc Size:.5 inch ID which can be conveniently stored

which can be conveniently stored in a bike bag

wind & rain-proof

8 mm Thickness 2

Prevents injuries such as cramping

Martyr Anodes, Streamlined Shaft Anodes with Stainless Steel Slotted Head .5 inch ID Zinc Size:.5 inch ID which can be conveniently storedMartyr Anodes, Streamlined Shaft Anodes with Stainless Steel Slotted Head Martyr Anodes provide low cost marine cathodic protection for boats, marine structures and boat equipment. Often called "Boat Zincs, Martyr Anodes are made of a specialized alloy based on the US Mil Spec using only high purity metals. Martyr is the only manufacturer that offers all three alloys that protect your boat from corrosion that can occur in salt water, brackish water