Swiffer Duster Cloth Refills, 10 Count allows consumers to conveniently purchase duster refills without the need to buy another handle. These refills are compatible with both the base handle and the new extendable handle, making them versatile for various cleaning needs. Each box contains 10 cloth refills, each measuring 4 inches in width and 10 inches in length, crafted from fiber material to effectively capture dust. These refills are designed to work with starter kits model numbers 40509 and 44750, providing an easy and efficient way to keep your home dust-. Model Number: 21459