Check the listing for details. Singing Rock Contra 10.5mm 300' White Climbing Rope - Durable and Reliable for. Condition: New. Listed at 235.57 USD. The Singing Rock Contra 10.5mm 300' White is a high-quality climbing rope designed for both beginners and experienced climbers. With a diameter of 10.5mm, this rope offers a perfect balance between durability and flexibility, making it ideal for a wide range of climbing activities.Made from high-quality materials, the Singing Rock Contra rope is built to withstand tough outdoor conditions and provide reliable performance during your climbs. The white color of the rope ensures visibility against various climbing surfaces, giving you added safety during your ascent.The 300-foot length of the rope provides plenty of versatility for different climbing routes and settings, giving you the freedom to explore and conquer new challenges. Whether you're climbing in the gym or out in the great.