A fence system (30) for fixing a thread (8, 8′, 8″, 8′″) to a post (4) is disclosed. The fence system (30) comprises a fixation member (2, 2′) comprising one or more fixation structures (6, 6′, 6″, 6′″) configured to receive the thread (8, 8′, 8″, 8′″) and hereby fix the thread (8, 8′, 8″, 8′″) to the fixation member (2, 2′). The fixation member (2, 2′) comprises a first portion (12) and a second portion (12′) detachably attached to each other.