Sisal fiber is obtained from the family of agave, a long-leaved plant present in the tropics. This fiber is picked up by a machine in which the sheet is crushed by rollers and then mechanically scraped. The fiber is washed and dried by mechanical or natural means. The dried fiber represents only 4% of the total weight of the leaf. Once the fiber dries, it is mechanically brushed twice. The bright threads, usually white, average 80 to 120 cm in length and 0.2 to 0.4 mm in diameter.
This fiber is highly valued for the manufacture of ropes due to its strength, durability, drawability, affinity for certain dyes, and resistance to deterioration by the effect of water. One of the industrial applications of sisal, in particular, medium grade fiber is used for the manufacture of ropes. The characteristics of the sisal rope, high tensile strength, good grip and knot safety, make it a rope of multiple applications in agriculture, fishing and livestock.