Some muppet has broken the boss off the bottom of one of my slide housings, and unsuccessfully tried to glue it back on. The Yamaha dealer laughed at me when I asked about a new one, and the wrecker only has a whole bank. Obviously happy to pay any extra for packaging/shipping to NZ. I have three used, but good diaphragms if anyone is interested too. Should look like the picture, except not rooted. Part no: 3LN-1411E-00