Time is money, thankfully you can save both on cable blowing installations, regardless of the conduit's length or cable occupancy. These Parachute Birds are made with coated nylon & feature a large open mouth that maximizes airflow, so they can travel faster and further than any other model. These color coded projectiles are available in four (4) sizes and work in 1" to 6" ducts, the kit includes all sizes allowing for maximum versatility.