Middle Atlantic 3-1/4" Width, 13 Space w/ Tie PostsMiddle Atlantic 3 1 4" Width, 13 Space w Tie Posts Designed for professional environments where cable management is as important as the signal itself, the Middle Atlantic 3 1 4" Width, 13 Space w Tie Posts represents a robust solution for organizing, securing, and routing countless cables inside racks. This perforated steel lacer strip is built to endure the rigors of daily use in audio visual installations, data centers, broadcasting suites, and high