This is the Mole Junior Trombone with 1 1/8" Socket. A Trombone hangs over the top of a set wall. Its adjustable arms accommodate any variation in the width of the wall it must hook over. This Junior version has a 1 1/8" receiver and accepts pins and accessories of the same size.
In the Box
Mole-Richardson Junior Trombone with 1 1/8" Socket