Descriptions: These non-conductive fiberglass rods can be screwed together to form longer lengths for running wire through walls, attics, crawl spaces, sub-floors, and suspended ceilings. Features: For running wire through walls, attics, crawl spaces, sub-floors and suspended ceilings. This item includes 10 rods with threaded brass connectors, flexible acrylic connection, brass push and pull rods. This fiberglass rod diameter is 4.0mm, great for installing cable. Flexible connection and splicing according to the required length. It is adopted of high quality glass fiber, excellent insulating property. Specifications: Material: Fiberglass, brass Color: Yellow Single rod length: 33cm / 13.0inch Diameter: 4.0mm / 1.57inch Weight: Approx. 178g Package included: 10 x Rods with threaded brass connectors 1 x Flexible acrylic connection 1 x Brass hook end for pulling 1 x Brass eye end for pushing