Hitch cord made from 50% aramid and 50% polyester results in a better heat and mechanical resistance. Flexible to tie the hitch easily and durable to manipulate in hard conditions. 5163311 5163321 Diameter inches / mm 5/16" / 8 mm 3/8" / 10 mm MBS 5000 lbs / 2200 kg 7000 lbs / 3200 kg Weight 50 g/m | 3.4 lbs/100ft 70 g/m | 4.7 lbs/100ft Construction Kernmantel Kernmantel Cover/Core Aramid - Polyester / Nylon &nbs