Yes this is a micro cache containing a logbook hidden in a location which could easily host a regular size cache. Therefore you will need to bring your own pen.
Please make sure to place cache back exactly as found and out of sight of roamers. Though this is only a micro, the place it is hidden is sufficiently dry and you may be able to leave trackables and trade items outside the cache itself yet still hidden.
This cache has been placed with kind permission of Three Rivers District Council, Friends of Croxley Common Moor and Natural England.