Their strands are made of a subtle blend of aramid and polyester. It is what gives them their high resistance to heat, thus making them long-lasting and very efficient for a maximum safety.
The VOLCANO rope is sold by the meter for the 8 and 10 mm diameters, or as prussiks with two sewn eyes for the 8 mm, 10 mm and 12 mm - 70 cm (2.3 ft) or 90 cm long (3 ft).