Versatile, modern and secure, Callero Plus Double Column Trolleys are designed with STEM, STEAM and collaborative learning in mind. Its multi-bin concept and double-wide format deliver lots of flexibility. Transport your equipment from place to place and create a one-stop central location for all of your students’ necessary supplies. Child-friendly StopSafe runners make it easy to access the bins’ contents while preventing the bins from being pulled out of their slot, eliminating the possibility of messy, accidental spills. At the same time, the runners can be removed and/or adjusted by those in the know to accommodate any size F-series tray: deep or shallow, either or both in one trolley. Durable steel frame is enclosed on the sides for added security, and both the frame and panels feature a tough, powder-coat finish to protect it from the rigors of daily use, while making it surprisingly easy to keep clean. Completely free of sharp corners and edges, these carts are also ideal for students of all ages, from Pre-K through adult learning. Ergonomic handles and included casters (two locking) make it easy to maneuver the cart either down the hall or fully across campus. Four glides are also included to give you the option of using your Callero Trolley for either fixed storage or fully mobile transport. Set 05: 16 F1 Shallow Bins. Material(s): Plastic; Steel; Overall Material Type: Metal; Color(s): Silver/Grass Green; Color Family: Green.