The Dynamis Low Double Cart range from Gratnells is a flexible, cost-effective storage system, compatible with the award-winning Gratnells tray range. With both static frame and cart options available, the Dynamis range is perfect for any classroom environment. Gratnells trays are interchangeable between cart and frame options. You can easily move equipment around the school as needed. Dynamis Low Double Cart Silver (44) Set 43 with 3" Casters, 2 braked & Feet 6-3 inch and 3- 6 inch Jet Black (21) Trays