PreRig 4-way Corner MFFM stage black is a 4-way aluminum corner element for the Global Truss PreRig system. It uses MFFM connections and supports complex truss constructions. The corner can be expanded to a sleeve block, enabling modular sleeve applications and extended configurations. Supplied as a single unit with a black finish, it is designed for permanent installations and scalable truss layouts. Manufactured for robust performance in professional events.