MAMBO® 10.1 mm10. 1 mm diameter single rope with good grip for gym or rock climbing With its generous diameter, the MAMBO 10. 1 mm single rope is a reassuring option for gym and rock climbing. Its 10. 1 mm diameter provides excellent grip, allowing users to familiarize themselves with the handling and use of belay devices. The thickness of its sheath also contributes to its durability. Detailed description Grip makes for easier handling: generous diameter allows