ABS body, metal ball-bearing rail. A-Aluminum columns B-Plastic steel columns. IV Pole, Needle Disposal, File Bag (optional), CPR Board (optional), Sliding Tank Holder (optional), CPR Board (optional), Sliding Side Shelf, Stainless steel guard, Centralized lock, 2 small & 3 big drawers repositioned easily with partitions can be well organized. ABS basket & drawer frame can be repositioned easily. Luxurious whise casters – two with brakes.