The inner rifling is 157.5cm long and the brush is 2.5cm. For , trumpets, French horns, and trombone instruments, the cleaning brush can easily clean. The inner rifling is made of high-quality stainless steel wire-wrapped material, which not only increases the softness, but also effectively protects the instrument coating. Protection, dense nylon brush, wear-resistant stainless steel rolled handle, highly elastic and not easy to deform and rust Material: Stainless steel + nylon colour: White Package Contents: 3 x brush 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.