Polypropylene Covered Elastic Cord #M-4 combines a UV resistant polypropylene jacket with a strong elastic core, providing approximately 100% stretch and excellent flexibility for outdoor use. Its ribbed design enhances grip and makes the black elastic cord easy to knot, while its abrasion and moisture resistance ensure durability against rot and wear. Lightweight yet heavy duty, this versatile 1/4 inch elastic shock cord is ideal for a wide range of applications including marine, tarp, tent, industrial, and DIY projects, offering long-lasting performance with a synthetic rubber core that retains flexibility over time. Available in a 500 feet spool, it is a reliable, multi-purpose black stretch cord suited for those seeking a resilient and practical solution for outdoor living enhancements.