Elevators 4x4 Double Angle Brackets are most commonly used to raise hunting blinds and other kind of platforms that require 4x4 legs for bearing heavier loads. The double pre-set angles offer side to side stability. Each 4x4 leg post (not included) inserts 5.75-inches into the bracket to ensure maximum safety and sturdiness. Elevator Brackets are designed for the elements and can withstand high winds and frigid temperatures. This Bonus Pack includes four E1088 Double Angle Brackets and one ESS50 50-count box of PowerLag Screws to complete the set.