Sterling Xeros 8.4 Duetto Rope 70m Orange 70m. A mid-range half and twin rope thats ideal for long wandering routes run-outs ice climbs or sketchy trad leads. UIAA Dry certified built with Sterling XEROS technology Features of Sterling Xeros 8.4 Duetto Rope Ideal for long wandering routesrun-outs ice climbs or sketchy trad leads. The smooth high-twist sheath and unique core allow the Duetto to be durable and easy to handle while reducing drag through gear and over rock. Package Contents: Sterling Xeros 8.4 Duetto Rope Sterling DD107AX040: Xeros 8.4 Duetto Rope 40m Orange 40m Sterling DD107AX050: Xeros 8.4 Duetto Rope 50m Orange 50m Sterling DD107AX060: Xeros 8.4 Duetto Rope 60m Orange 60m Sterling DD107AX070: Xeros 8.4 Duetto Rope 70m Orange 70m Sterling DD107AX070: Xeros 8.4 Duetto Rope 70m Orange 70m