Hello, it looks like this can go in an untracked envelope for around 7 nzd, however it won’t have much padding as the envelope can be a max of 1cm thick and the pin is around that thickness with the backing included. The smallest tracked parcel size costs $30 nz. In that case it would be more worth it to combine postage with another item, I’ll be uploading more over the coming days as I’m doing a big clear out.