You are looking for a small cylindrical object. (BYOP)
This might be treated as a cache & dash, but if so you'll have to stop in a lane that's wide enough for only one vehicle. If you want to take time searching it's probably best to park in the car spaces at the nearby pub (which is just a Hop away), but these can get log-jammed at busy times.
(The pub itself is worth popping into, for a bite, or whatever, but that's just my opinion. I have absolutely no connection to the proprietors or any of the staff.)
Congratulations to Dobunnis on another FTF. That's my first two geocaches you've FTF'd, with this particular one being my very first.

This cache was resurrected on 21 June 2014 following a temporary archiving.