I believe these were used for mountain climbing by someone in my family, but I don't know much about them. For those who know: Flat rope, 4 pieces Width: 24 mm, Height: 3 mm The loops are stiff and wouldn't come undone. Approximately 75 cm, 2 pieces Approximately 100 cm, 1 loop Approximately 180 cm, 1 loop Round rope, 4 pieces Diameter: 5 mm Approximately 180 cm, 2 pieces Approximately 160 cm, 1 piece Approximately 90 cm, 1 piece There are other items as well. Please check #aiMountainClimbing I will add photos if needed. Please comment if you need them.