[Dreyoo Zinc Anode Weight]: We use a higher purity and heavier skimmer, weighing 8.57 ounces, 2.7 inches in diameter and 0.43 inch in thickness. Whether you bolt it inside or outside your skimmer, the sacrificial anode will work its magic. It will secure the skimmer basket in place. Include 2 plastic ties [Anti Electrolysis Sacrificial Anode]: Aside from weighing down your skimmer basket, this zinc anode weight neutralizes the salt in pools with salt systems to prevent corrosion. The salt water corrodes metals due to electrolysis that takes place. The zinc anode in saltwater pool is corrode earlier than the surrounding metal, this protecting metal components of the ladders, screws, rails, lighting frames, and other are in constant contact with the saltwater [Galvanic Anode for Passive Cathodic Protection]: The way the sacrificial anode works is that it corrodes first before other metal components in the pool, the zinc (anode) basically protecting more "noble" metals (cathode). Together with equipotential and pool water bonding, this galvanic anode will aid in preventing corrosion. This zinc anode weight is a simple yet effective solution to corrosion [Salt System Swimming Pool Must Have]: Prolong the lifespan of your salt system pool's metal components. This is imperative even if you haven't yet noticed signs of corrosion. Don't wait for corrosion to eat away your pool's screws, ladders, and more! This zinc anode weight is a simple yet effective solution to corrosion [Easy to Use]: The zinc anode for saltwater pool is suitable for most salt systems and swimming pool systems, easy to install and replace, just put the pool zinc plate in your skimmer basket, thread the tie through the mounting hole of the zinc plate, and tie the zinc anode plate to the basket. Very convenient and affordable Dreyoo Skimmer Basket Zinc Puck The zinc anode 'puck' helps to protect metal corrosion such as handrails, lights, equipment components, etc. And plaster discoloration due to electrolysis issues. This is especially common in pools with salt chlorine generator. The zinc puck can be attached to the inside or outside of any skimmer basket. Just push the plastic screw through one of the holes in the zinc puck and through the basket. Skimmer basket zinc puck features: Protects against metal corrosion. Protects against discoloration. Easy to install. Zinc anode usage tips: 1. Use zip ties if you don't want to mount the sacrificial anode permanently into the skimmer. 2. There is no difference in the effect of the zinc anode whether you install it inside or outside the skimmer basket. 3. Sacrificial anodes don't rust, but they deteriorate. Depending on your pool water's pH, the sacrificial anode can last for several pool seasons. 4. You'll need to replace the sacrificial anode when reduces to half its original size