【What you get】1 x Solar Copper Anode 【Easy to use】10.5 x 1.8 x 1.8 cm. Easy to install and replace. The replacement copper anode helps you save chlorine and pool operating costs 【Material】Made of premium copper, sturdy and durable, not easy to break for long service life 【Function】The solar pool ionizer copper anode helps keep your pool or hot tub crystal clear with less dirt. 【Widely used】The solar copper anode may be slightly discolored or contain small amounts of impurities commonly found in copper. Regular cleaning is recommended. Specification: Item Type: Solar Copper Anode Product Size: Approx. 10.5 x 1.8 x 1.8 cm / 4.1 x 0.7 x 0.7 inches Material: Copper Weight: Approx. 237g / 8.4oz Uses: For solar pool ionizer, saves chlorine costs, reduces irritation, cleans and clarifies your pool Note: Your anode may be slightly discolored or contain small amounts of impurities commonly found in copper. The product is ground copper (with 1% silver) from a copper rod. The nature of copper is that it can oxidize and create discoloration. Small amounts of impurities, commonly found in copper, can also discolor due to moisture and air.