Fenceman distance tape insulator pack 10 these fenceman distance tape insulators come in a pack of 10 and screw into wooden posts these tape insulators will hold wither 20mm or 40mm electric fence tapes approximately 20cm away from the fence post the insulators hold the tape without damaging either the structure or the conducting lines fenceman distance tape insulators feature easy bite screw threads so screwing them into wooden posts is easy and efficient