[ Design]: Each set includes 2 / 4 with 2 / 4 large holes ( 26mm diameter) and 1 small hole ( 5mm diameter) for easy installation and airflows optimization in your dryer systems [ Essential Maintenance]: Installed at the heat exchangers front, these replacement help maintain dryer by trapping lint and protecting internal components [ Customizable Usage]: The flexible foam materials allows trimming when needed, ensuring adaptable fit for various dryer models while maintaining efficient lint filtration [ Effective Filtration]: These dryer filter foams are designed to captures lint and debris, featuring a sturdy polyurethane construction that can be washed under running water for repeated use in your dryer []: Measuring 220mm x 130mm x 30mm, these black foam directly install in front of the heat exchangers, compatible for model 9499230 as a replacement for part number 7686791, Manufacturer: Mekalero