Aluminum circles and balls are best used as decorative accents in balconies, fences and gates. Incorporate a ring border at the top of a balcony or stair railing. Use an aluminum ball inbetween aluminum hooped panels to create a unique staircase railing. A border with aluminum rings in a fence will create the appearance of shorter spindles and will make your fence look like art. Aluminum balls can be used sporadically in your railing design, creating a whimsical look.