1. Nylon Tube Brushes Set Package Included: 10 Pcs Needles + 15 Pcs Brushes,Length: 7.8+ 4.3Inches, The Diameters For These Brushes Are 2, 3, 4, 5, 6, 8, 12, 16, 20, And 24 Mm ,Needl Diameters:1Mm~1.5Mm | | 2.Tube Cleaning Brushes Set Material:These Cleaning Tools Are Helical, Made Of Good Density Nylon And Stainless Steel; They Are Rust-Proof Without Hair Removal, And Not Easy To Deform. | | 3. Pipe Cleaning Brush Product Characteristics :ItS Excellent Rust-Proof, Flexible And Lint-Free, Special Spiral Design For The Brushes Can