Soft Packing for inside sax case . Foam from old cushions works well, as do carpet pad scraps. Plastic peanuts are ideal, but well-crumpled newspaper is quite effective. The No. 1 cause of damage to saxes in shipment is failure to place the neck plug into the sax body neck opening. Since failure to install the neck plug is improper packing, none of this damage would be insurable.
Sax manufacturers supply neck plugs in the same finish as the sax.
Manufacturer's supplied neck plug, properly installed into sax body neck cavity. Should it not fit snugly enough with the neck screw's tension, secure it with a small piece of utility tape. Wine bottle corks are perfect for this purpose. Leave Nothing Loose in Case Bag all accessories. Neck is wrapped alone in a soft bag or cloth.