Aluminum Alloy Material: Our deck balusters are constructed with durable aluminum alloy material, warp-proof, rust-proof, and corrosion-proof for long-term usage. The sturdy metal material can efficiently improve the security of your deck. And it is designed with a hollow tube structure. 76 Pack 29.5' Length: These metal deck spindles measure 29.5'/75 cm in length and 1'/2.5 cm in width that will fit for most railing frames. We provide you 76 balusters here, and you can choose the quantity according to the dimension of your deck or staircase. Stylish Deck Balusters: Wave curved shape and matte black color will create a beautiful deck or porch railing for you. Our metal balusters are powder-coated with AAMA-2604 compliant material that can keep stable under various weather conditions. Convenient Installation: The staircase balusters feature pre-drilled holes at both ends for your easy and quick installation