Switch Cube® indicator, down arrow left turn, makes it clear which way the train will go. Includes mounting platform, and 4 metal plates. 2 green with arrow pointing up. 1 yellow with arrow point up, left. 1 yellow with arrow pointing down, right. Sign plates are 8-inches by 10-inches, 0.018-inch aluminum with retro-reflection coating for visibility. Weight: 10 pounds. Product of Aldon® Company.