Here's what other sites are saying:
Maintains Rain Fly Tension For Better Weather Resistance. The MSR TightLine Cord Tensioner maintains rain fly tension through temperature and humidity changes and reduces the effect of gusts when the weather gets rough. The silicone shock absorber with durable nylon webbing functions in temperatures as cold as -35 F (-37 C), while the cord tensioner's reflective pattern increases visibility. Includes 2 TightLine Cord Tensioners. Weight: .5 oz/14 g. Length: 8.5 in/21.5 cm. Country of Origin: Made In USA. Available Color(s): Red
- Tahoe Mountain Sports
Description of MSR Medium Cord Tensioner KitFeatures10 tensioners for 2.75 to 5mm cord
- US Outdoor Store
MSR's TightLine Cord Tensioner keeps your rain fly tout through temperature and humidity changes and even helps absorb shock and stress from high winds. Its reflective pattern makes guy-lines more visible and is effective in temperatures down to -35 degrees Fahrenheit. Pack of 2.
- Mountain Gear
Leave it to MSR to reinvent the way you guy out your tent. Unlike the static guy line that comes with your tent, the TightLine Cord Tensioner flexes to accommodate changes in fly tension due to drastic changes in temperature or wind. A taught rain fly means better protection from the elements and happy campers all around.
On Sale. MSR TightLine Cord Tensioner FEATURES of the MSR TightLine Cord Tensioner Maintains fabric tension through temperature and humidity changes Reduces the effect of gusts and unexpected bumps Silicone shock absorber with durable nylon webbing Reflective pattern increases visibility Functions in temperatures as cold as -35Adeg F / -37Adeg C