Ring insulator with continuous support, Kerbl

Ring insulator with continuous support, Kerbl — KERBL. Country of origin: Poland. packaging: 25 pcs in a bag / 500 pcs in a carton • screw-in insulator for wood • embedded bent pin - possibility of screwing into very hard wood, e.g. oak, acacia • pin with a diameter of 5.3 mm • thickened walls for better insulation • larger than standard insulating collar against punctures • rounded edges protecting the conductor