Our fiberglass rod as fence post for electrical fence system is made by pultrusion process with E-glass and UV based polyester resin, which can reach very high strength, good insulation and durability property. And it causes the following benefits: Maintenance Free: ? will not rot ? will not rust ? will not crack due to cold Self-Insulating: ? cannot cause a short ? eliminate insulators forever Durable: ? flex upon impact ? over 2 times the strength of equivalent steel ? pointed tips drive easily Easy to Install: ? lightweight- 1/4 the weight of steel Cost Effective: ? SAVE: eliminates replacing damaged insulators ? SAVE: eliminates tracking down shorts at the post ? SAVE: eliminates realigning tilted or replacing rotted or rusted posts ? SAVE: faster, easier installations We have the following sizes in stock: ?9.5mm,?10mm,?12mm, and?16mm. Any customer sizes or customer colors are available. Normally, we provide two types of products: economy products with UV inhibitor in the resin and weather-proof products with UV coating on the surface. These products are available in your special length (with or without pointed at one end) and come packaged 20pcs to a bundle.