Deckorators® 141774 Traditional Solar Versa Post Cap, White, 4" x 4"Deckorators Traditional Solar VersaCaps add style to any posts made of wood, vinyl or composite; and work with most leading post sleeves on the market. The Traditional Solar VersaCap comes with 3 bracket inserts, so it adapts to fit most railing posts. This cap is a great way to add deck lighting without electricity. Size: 4" x 4" Color: White Includes 3 bracket inserts nested inside the base Fits posts ranging from 3 1 2" x 3 1 2" to 4 5 8" x 4 5 8"