Ropematic has a durable latch that grabs rope or fish tape when pulling down. When pull back up, the latch loosens and easily slides up the rope or fish tape. Then pull down again and the Ropematic will grab the rope or fish tape, pulling it down. It can pull most ropes and fish tapes. Pull easier, faster and safer. Saves on average 30 minutes based on a 75 feet pull. Use both hands ergonomically for maximum pulling strength without the pain.