Protects post from nature's elements. 4 in x 4 in post cap has 3-5/8 in x 3-5/8 in opening size, for posts measuring 3-1/2 in x 3-1/2 in. 6 in x 6 in post cap has 5-5/8 in x 5-5/8 in opening size, for posts measuring 5-1/2 in x 5-1/2 in.
Use with rail systems for installation. Manufactured heavy-duty steel construction with baked-on powder paint. Engineered for value and ease of installation. Color-coded packaging, labeling and POS materials for easy selection. Use for classic rails. Flat black (plastic) cap included. Fits 1-1/4 in rail.