Retreev - Miniature Magnetic Grappling Hook Retrieval Tool | The Green Head
Magnet Fishing Grappling Hook - Non-Magnetic Stainless Steel | Other from First4magnets.com
What's the closest thing to Batman's grapple gun available in real life? - Quora
Fishing Magnet with Grappling Hooks,66ft Rope & Glove,760LB Pulling Force Super Strong Neodymium Magnet with Heavy Duty Rope for Magnet Fishing and Retrieving in River: Amazon.com: Industrial & Scientific