Generous Quantities: each package includes 60 pieces of water polishing pad; The ample quantity included gives you enough to replace your filters regularly for nice performance; A monthly change is recommended to ensure effective filtration Appropriate Size: with measurements of approximately 4.33 x 2.76 x 1.42 inches/ 11 x 7 x 3.6 cm, the water polishing pad for aquarium is compatible with Fluval 306/ 307/ 406/ 407 underwater filters; Its design ensures a snug fit while still allowing seamless water flow and filtration, making it beneficial for aquarium Quality Material: the aquarium filter pad is made from quality polyurethane sponge, ensuring durability and reliability; The robust material is designed for efficient filtration, maintaining its integrity and performance over extended use; Its white color also gives the pad a clean and sleek appearance, making it visibly pleasant Easy to Use: this filter pad is designed with simplicity and convenience in mind; Its installation is easy and straightforward, making the maintenance process less tedious; Whether you're a beginner or a seasoned fish keeper, you'll find replacing these filter pads in your aquarium a breeze Regular Maintenance: changing your filter sponge once a month aids in having a healthier and cleaner aquarium environment; Regular replacements are helpful to foster healthier and happier aquatic life; With the filter pads, commitment to regular maintenance is made easier and more efficient Color white Brand Name Baquler Item Weight 0.72 Pounds Manufacturer Baquler Number of Items 60 Age Range Description Adult Item Dimensions LxWxH 4.33 x 2.76 x 1.42 inches Specific Uses for Product Active Item Package Dimensions L x W x H 12.28 x 7.87 x 7.64 inches