a fence post sleeve designed to allow the quick and easy erection of a temporary fencing structure without the use of installation tools . the fence post sleeve is a generally tubular structure having at least two barrier fence clips and a longitudinal slit . the fence post sleeve is designed to cooperate with a number of common fence posts . the barrier fence clips releasably secure flexible barrier fencing to the fence post sleeve , and thus the fence post . the fence post sleeve is particularly useful in the installation of construction fencing and other forms of temporary barrier fencing .