Welcome to ZIPLINEGEAR!
The Eye Lag Screw is a piece of hardware useful in securing the Bungee Cord to a fixed point like an adjacent tree or post.
This product is NOT for anchoring your zip line cable. Instead use either the Cable Sling or Eyebolt.
Not only do you get amazing hardware, but you get the very best customer service in all the land.
If you're not happy, send it back for a full refund within one year.