This glass rainproof agent is safe and practical, designed to be used as a barrier coating on surfaces. Its hydrophobic effect causes water to bead and roll off, helping to maintain clear visibility and enhance driving safety in wet weather. Features: - Color: Assorted - Material: Surfactant, Nano particles - Size: Approximately 14.00 x 9.00 x 5.00 cm (5.50 x 3.54 x 1.97 in) - Forms a protective film quickly and efficiently, helping prevent rainwater from creating a water curtain on car glass that can obstruct vision - Fine craftsmanship with a smooth texture, high concentration, and long-lasting performance - Lightweight and practical design for easy storage and portability - Provides effective waterproofing, ideal for use during rainy conditions to improve driving safety - Affordable and practical solution for maintaining clear glass surfaces