I am offering a hard plastic case for a saxophone.
This case measures 24" side-to-side x 10 1/2" front-to-back x 5 1/2" thick, on the outside.
The inside is of this case contains Styrofoam with indentations for a saxophone and parts.
The Styrofoam is covered with black velour, a material that feels like short fur.
The space for the saxophone measures 22 7/8" from the mouthpiece-end to the bow.
The bow is the larger bend leading to the sound-end of the saxophone.
The the space from the bow to the sound-exit of the saxophone measures 12".
A saxophone that is 3 1/2" wide can fit into the space.
There is a separate space for the mouthpiece-part, which is called the neck.
This saxophone case is clean, undamaged and in excellent condition.
I do not have a saxophone.