Enhance Designer Rail Aluminum balusters with matching Designer Rail post caps. Made in the USA from high quality C1022 Steel, these post caps are maintenance free and will provide long lasting performance. Available in four colors, the textured powder coat finish is low matte and not high gloss compared to other balusters on the market. The look and feel is similar to painted Iron, authentic Copper and Bronze. Simple installation with construction grade adhesive. Minor modifications to post may be necessary based on wood specie. Made to fit 4x4 (3-1/2" x 3-1/2") rail posts.