NZ Post DLE Tracked XS ticket
Retail $5.20 per ticket at NZ Post
These will be usable forever with no extra charge.
Use these on any of your own satchels up to 0.001m3. (approx DL size 235x130mm).
Check my kraft paper courier satchels in DL size which you can use with these tickes.
Rural ticket may be required for rural addresses.