Specifications: Material: sponge Size: S:diameter:3.5cm\1.38".length:6cm\2.36" ,hole diameter:1cm\0.39" M:diameter:4cm\1.58".length:8cm\3.15" ,hole diameter:2cm\0.79" Package includes: 1pcs * Aquarium Filter Protector Cover Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data. 【High-Quality Materials】Crafted from premium, durable materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety. 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool. 【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users. 【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs 【Eco-Friendly and Sustainable】Made with environmentally conscious practices, this product is eco-friendly and contributes to sustainability efforts. It is designed to minimize waste and reduce environmental impact.