This is a take-off from a brand new 2017 KH 27.5 muni. Both are 100% brand new. Post has not been mounted in frame. Saddle has not been ridden. Post is 320mm x 27.2mm.
If purchased from UDC it would cost $95 + $35 = $130 + shipping.
Asking $110 for saddle and post with free shipping to 48 contiguous states.
Pictures shouldn’t be necessary as these are brand new but here goes: