knots

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Across
  1. 1. looks like a butter fly
  2. 6. sling system
  3. 7. helps to climb up steep mountains
  4. 8. stable piece of rope in the middle
  5. 9. secures things in place
  6. 10. strong rope shackle
Down
  1. 2. helps lifts buckets
  2. 3. makes a secure loop
  3. 4. helps carry a bottle with a narrow neck
  4. 5. climbing mountains