The 3/8 in. x 500 ft. Toneable/Dectectable Duct Rodder from GMP Tools is engineered for precision and reliability in challenging placement tasks. With its durable construction featuring high-visibility fiberglass and an embedded 18 AWG copper conductor, it excels in both toneable and detectable applications, ensuring easy location in underground or inaccessible areas. The rod's consistent markings every two feet facilitate effortless measurement, while its hand-operated brake allows for controlled payout, enhancing user experience. Designed to navigate rough or uneven terrains, the duct rodder's large airless tires provide stability, making it a valuable tool for any cable placing operations.