The Sterling 8 mm Tag Lines are the largest diameter offered, but is still lighter than carrying a second rope and it's static nature gives you a line to jug up if needed.
*Tag lines are not to be used for lead climbing. Tag lines should never be used in place of a dynamic rope, and caution should always be taken when rappelling with two different diameter ropes.
MBS Rating (lb): 3,506
MBS Rating (kN): 15.6
Weight (g/m): 43.0