The inner rifling is 157.5 cm long and the brush head is 2.5 cm. Suitable for trumpets, French horns, and trombones, this cleaning brush effectively cleans the interior of brass instruments. The inner rifling is constructed from high-quality stainless steel wire-wrapped material, enhancing flexibility while protecting the instrument's finish. Features a dense nylon bristle head, wear-resistant stainless steel rolled handle, and offers high elasticity with resistance to deformation and rust. Material: Stainless steel + nylon Color: White Package Contents: 3 x brushes Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.