The 100mm powapost repair spike is a special post shoe designed to provide a quick and easy solution to broken or rotted timber fence posts fence posts set into the ground can easily rot or break due to weather and ground conditions this repair spike is easy to use and will save you time and hassle this repair spike will help you repair spikes without need for concrete picks a shovel or any machinery to use this spike simply cut down the broken or damaged post so it is flush with the groun