1.HEAVY DUTY RELIABILITY The line of the diving coil is made of 1.8mm nylon, well braided with eight strands for strength and tightness. Environmentally friendly, rust resistant and able to withstand prolonged use 2.Wire ball: with the copper fin wire feeding station from the diving coil of our spool, you can easily and gently handle your wire when diving and avoid snagging. This optimized cable management system makes winding wires a breeze and guarantees hassle diving every time 3.Usage Our diving coil provides a coil controller for easy release and maintenance of the line at the desired length after jumping from diving and fishing experiences 4.Extensive Application Our diving coil with a convenient thumb lock is designed for deep diving and discovery diving, snorkeling and other underwater activities