these 45mm plastic insulation washers are an essential component in the installation of rigid foam boards. Their effective support and easy installation process make them suitable for both and DIY enthusiasts. Ensure your insulation projects meet their fullest potential with these reliable washers. Features -Color:White -Material:Plastic -Size:4.50X4.50X0.50cm/1.77X1.77X0.20in -Material: constructed from plastic, they withstand wear, promising durability. -Strong fastening mechanism: designed for a secure fit with screws, these washers minimize the risk of loosening, ensuring a strong and stable installation -Diverse usage scenarios: suited for applications in construction, remodeling, and furniture making, these washers are versatile -Quality commitment: manufactured with standards, these washers strict quality assessments, ensuring they meet diverse user expectations reliably -Fit:White Plastic Washers are suitable for fixing and installing foam boards, rubber boards and other decorative materials Package list: 200pcs gasket