Wide Usage: For running wire through walls, attics, crawl spaces, sub-floors and suspended ceilings, great insulating property. Material: Made of fiberglass material, includes 14 rods (3/16inch diameter) with threaded brass connectors, 3/16inch acrylic connection, brass push and pull rods. Convenient To Store: Provides plastic storage case, very convenient to store. rods are highly visible and convenient to be found. Excellent Extensibility: Rods used individually or threaded together for desired length. Advantages: Strong Flexibility (But Do Not Bend Forcibly While Using), Wear-Resistant, Corrosion-Resistant and . Made of fiberglass material,Excellent Quality and Very Flexible,can be used individually or threaded together. size:20 Feet Material:glass fiber colour:Blue Package Contents: 1 set x wire guide (accessories as shown ) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.