A Thomson Elite Covert dropper seatpost, with the bronze/gold coloured post - later ones are black. Model number is DP-E103. Fits 30.9cm seat tube on a mountain bike. Length from top of seat post to bottom of dropper (silver collar) is 400mm.  This means it is a 125mm travel post.

This dropper seatpost was fitted as OEM on a 2015 Yeti SB6c Medium sized frame mountain bike. 

Overall it is in a good condition for its age. One slight scratch/mark on the bronze colour upper part of the dropper and some markings on the lower from when it has been fitted. Was working Ok when the bike was last ridden, a year or so ago. Has been removed a while ago so not tested and therefore potentially would need or benefit from being serviced.