Poles are constructed of heavy gauge aluminum and can come in either black powder coated, brown powder coated, white powder coated, green powder coated, tan powder coated, or silver mill finish. Independent testing in the United States and France have shown our QUAD-X core aluminum poles to offer far more strength than is required by strict local ordinances around the world. Pole spacing is optional at either 30 or 36 inches. Be sure your pool fence has QUAD-X Poles.