Features: Improved Ceiling Safety: Crafted from high-temperature-resistant PA66 material, this fire-rated recessed light cover forms a durable barrier between the fixture and insulation, reducing fire risks and preventing direct heat contact. Ideal for ensuring reliable ceiling protection in homes or offices. Heat Retention & Noise Reduction: Engineered for airtight performance, the fire-resistant and energy-saving light insulation protect cover helps retain indoor warmth and block external drafts, improving overall energy efficiency. Its dense construction also dampens ceiling noise, creating a quieter and more comfortable living environment. Specifications: Material: PA66 Color: black Size: 8.07 x 8.07 x 5.31 inch/ 20.5 x 20.5 x 13.5 cm (Outer); 7.09 x 7.09 x 5.2 inch/ 18 x 18 x 13.2 cm (Inner) Package Includes: 30 x Fireproof recessed light covers Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays