BasicNature Rubber cord, black 2 mm 10 mBlack elastic rope with an elongation of 120 %. This is used in most tent poles. In the 10 meter pack with washers (this only for use in 12 mm rods) and instructions. The rope elasticity also helps to absorb shock, which aids in transporting delicate equipment, holding and storing items. Available in different sizes and lengths. Made in Germany.