EP Henry 12050674 Verti-Block 2-Sided Wall Cap - This 2-sided wall cap is part of the EP Henry Verti-Block Wall system. Verti-Block is an oversized, hollow pre-cast block that is ideal for a variety of landscaping projects, including gravity walls up to 14' high. Verti-Block can be stained on-site to integrate into existing landscape or hardscape applications.