They are also very strong! You might hear the word aluminum and picture an aluminum can; but these thick metal book posts are incredibly strong and will not bend, even under heavy pressure. As the capacity gets longer, so does the length of the screw on the male end, which makes for the strongest bind possible.
Of course, you also already know that these metal posts also come in various colors. Traditional silver/plain aluminum is the most common, but we also offer a clean and deep black that looks very elegant, a bright gold/brass that is vibrant and saturated, and an antiqued brass for a more rustic, old-fashioned appeal.
Aluminum posts also come in the largest selection of sizes; from as small as 1/8" up to as large as 5". This huge variety means you can really choose the best size for your document without having to compromise.