The SONAX S428000 sponge is made from double-layer microporous foam material, with a soft outer surface that traps dirt and scratches, and a harder inner layer for durability. Its high absorbency (up to 12× its weight in water) creates rich foam, making it easier to remove dust, mud, and brake particles. Ideal for use with all SONAX cleaners, it protects the paint and offers even drying.

• Material: Double-layer microporous foam (soft–hard core)
• Absorbency: Up to 12× its weight in water
• Dirt Management: Soft outer surface for trapping particles
• Durability: Hard inner layer for long-term use
• Compatibility: Suitable for all car cleaning products
• Maintenance: Washable and dries quickly