stainless steel | High-quality Material: Our joint knife set is made of 3CR13 stainless steel with high hardness, which provides durability and resistance to corrosion. The mirror polishing provides a smooth surface that is easy to clean, can be used for longer life | Comfortable Grip: The soft handle of the spackling knife set is made of high quality PP&TPR material, with non-slip patterns on both sides and finger guide rail on both sides, which gives you a comfortable edge to grasp, with special ergonomic handle design on drywall joint knife facilitates drywall work in large area conveniently and quickly, helping reduce hand fatigue when using drywall scraper tool | Versatile Sizes: This putty knife set includes four paint scrapers in sizes 2", 4", 6", and 8". With these different sizes, you can easily meet all your daily work needs. The smaller sizes are ideal for applying adhesives and drywall tape, while the larger sizes are perfect for applying putty, plaster, and other home improvement works, meeting your different requirements | Great Design：The 0.8mm thinner full flex blades offer maximum flexibility, allowing for precise and smooth finishing. Hanging hole design on the handle of the putty scrapers for storing on any nail or pegboard, saves space | Multi-use Tool: These putty knives are not only suitable for applying putty, puttying windows, scraping paint, removing loose putty or paint, removing vinyl or paper wall coverings, and patching dents, cracks, and holes in plaster, but also for wallpaper, applique, backing, repair, paint, plaster, and other tasks