The Quantum Food Service TTK-M21 is a mobile track shelving system designed for efficient storage and easy mobility. This kit includes four 74-inch posts, four track rollers, two tie bars, four rigid casters, and four donut bumpers, all featuring a durable chrome-plated finish. NSF certified for safety and sanitation, this system is ideal for food service environments. Made in the USA, it combines functionality with quality craftsmanship, ensuring reliable performance in any commercial setting.