8 foot fibreglass mid-pole with male and female ferrules. Marvin offers 3 hollow core fiberglass poles each of which are lightweight and extremely durable. The wall thickness of our professional series pole is .125" (25% greater than the average pole which ensures a ridged feel). The female ferrule features a heavy duty spring clip. The base pole features a heavy duty rubber boot. Bright orange coloring makes them easy to spot.popular with professional landscapers and home owners. Both series of poles feature air craft grade aluminum extension ferrules.