2mm: Whether you are counting ounces or looking for an upgrade, the 2 mm guy ropes are perfect for any backpacking setup. The 8-foot reflective guy lines don't sacrifice strength, and the glow-in-the-dark tensioners will help prevent tripping in the dark.

4mm: The 4 MM Guy Lines are perfect for securing any size camping shelter, tarp, or tent. The strong aluminum tensioner adjusts with ease and holds securely. They come in a pack of 4, and each guy line has a 12-foot length to ensure they will work in most camping applications.