TENAX Extra Strength C-Flex Fencing features thick rounded tensile strands that will resist the stretching and sagging that may occur with time in similar fences and creates a virtually invisible deer fence from a distance. Extra Strength C-Flex has a breaking load of 750 pounds and a life expectancy of 15 to 20 years. The UV-resistant polypropylene material is durable, and will remain tough even after years in harsh weather. C-Flex Fencing is simple enough for anyone to install without the help of a professional. Extra Strength C-Flex is 110 grams per square meter, making it an incredibly lightweight alternative to more costly and complicated metal fences.