Comprehensive Cleaning Kit: This set includes 14 wire brushes, each 12 inches long, secured on a convenient key ring. Perfect for reaching deep into pipes, tubes, and other narrow spaces to dislodge debris and buildup. With both brass and stainless steel bristles to tackle various cleaning challenges. Construction: Crafted with robust stainless steel and brass bristles and sturdy galvanized iron handles, these brushes are designed to handle tough cleaning jobs. Note: Brushes come with a protective oil coating; wash with paint thinner before first use. Ideal for Multiple Uses: Suitable for cleaning automotive parts, lab equipment, and intricate machinery components. These brushes thorough cleaning without damaging sensitive areas. Flexible and Efficient: The different sizes and types of brushes included in this set highly adaptable for cleaning tubes, cylinders, or narrow spaces where rust and debris accumulate. Color: As Shown Material: Stainless Steel + Brass Package Contents: 7 x Brass Tube Brush(6/8/10/12/15/20/25mm) 7 x Stainless Steel Tube Brush(6/8/10/12/15/20/25mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.