The Tru-Test Power Staple Wood Post Claw Insulator is specifically designed to work with the StockAde ST400 and ST400i nine gauge fence staplers.
These high density insulators lock your wire within a channel in the insulator and have two special heads to fire a staple through. The heads were designed to fit the Power Staple Guide Attachment which directs your staple into the preformed holes.
The Insulator is rounded to fit nicely onto your post. The result is a very strong and very attractive electric or high tinsel fence.
There are 200 insulators per box.