All Divers know the value of having Extra-Line. If you're on the Beach or Boat you can always find a use for a piece of line. You may want to Fashion a Sun Shade with your Ground Cloth when on the Beach or use to Tie-Off to a Buoy or Float Line for Retrieving Tired Divers when currents are present the list can go on and on. This Floating Strong Braided (L x W) 100' x 3/8" (1 cm x 30 meter). Line is a must for all divers new or advanced.