“I'm not sure how long this type of product has been on the market, but I wish I'd known about them sooner. My prior "solution" to broken insulators on an already installed fence was to take a new insulator, slice it lengthwise with a knife or box cutter, then try and pop it on the fence. Needless to say it was difficult, somewhat dangerous (to do the cutting if you don't take proper precaution to protect your fingers) and awkward. The Spiralators, while a bit more expensive and, as others have noted, difficult to get on the wire at times, are, in my estimate, worth it.”
“This is my second bucket of Spiralator insulators, takes a little effort to get it on 12.5 GA wire, but seems to work well for those places another insulator is needed. I put the slit down, hoping to keep water out. Have not noticed any arching. Takes the snow weight better than other after thought nail on insulators.”