Water Wick Plant Wick Watering Cord 25ft Long 2mm (1/16 inch or 0.078 inch) Thick ( 6 pack ) selfwatering planter diy self watering pot Color: White. Material: Polyester Recyclable, washable wick for your hydroponic system Great for growers who just start with hydroponic planting Size for sale: 25ft long; 2mm (1/16 inch or 0.078 inch) thick This is a Pack of 6 cords