[Comfortable & Secure Grip] Designed with user comfort in mind, these sponges feature a fine fleece backing that provides exceptional grip and reduces hand fatigue. the textured surface ensures secure control during both wet and dry sanding applications, making your projects easier and more efficient. [Multi-purpose Performance] Excel in various applications including metal sanding, rust removal, furniture restoration, and wall preparation. the 400 grit texture delivers smooth finishes on all surfaces while maintaining excellent durability. perfect for both coarse material removal and fine finishing work on any project. [Versatile Sanding Solution] Our package includes 100 pieces of 400 grit sanding sponges, perfect for all your sanding projects. whether you're working on metal, wood, or walls, these sponges provide long-lasting performance and consistent results. the generous quantity ensures you always have enough for any task. [Washable & Reusable] These durable sanding sponges are designed for multiple uses and can be cleaned with water for repeated applications. the washable feature allows for a cleaner finish by reducing dust buildup, while the reusable nature makes them an economical choice for both professionals and enthusiasts. [Perfect Size & Flexibility] Each sanding sponge measures 2.95x3.94x0.2 inches, offering the ideal balance between coverage and maneuverability. the flexible design easily conforms to curves and hard-to- areas, while the material can be trimmed to your exact needs for precision work on edges and contours.