Material: Anti Electrolysis Zinc Anode Plate is made of zinc alloy material to ensure durability and stability and long service life. Versatility: The Zinc Anode Weight Block is widely applicable and versatile and can help you handle cleaning in your pool. Protection:Protection for Pool Equipments can be used to protect your pool, easy to use, easy to install, comes with screws, keeps it clean and saves repair costs. Pool Tool: Zinc Anode Weight Pool Tool is a practical and essential pool maintenance tool that helps you save time and energy. Size:7.47cmx0.64cm/2.94inchx0.25inch. Size Chart: 7.47cmx0.64cm/2.94inchx0.25inch Package Includes: 1 Zinc Anode Weight Block 2 screws Note: Please allow slightly errors 1-2cm differences due to manual measurement.