Zareba Systems WPT25WPS Insulator with Screw, 250 Pack

These work great! We’ve used other brands in the past and they don’t hold up.

These appear fantastic with the polyelectric tape, However, they are not made from a UV resistant plastic and within 1-2 years the plastic becomes brittle, breaks and crumbles. This causes a continuous need for maintenance to purchase new replacements and time spent replacing the broken pieces to maintain the electric polytape. The company needs to use a better quality plastic. I guess that would mean that they would loose money by making a better product as they woud not sell as many replacement parts. So, I either keep buying these parts, or need to give up the poly tape and continuous replacement parts, in order to replace with a different product altogether.