Gratnells Callero Plus Treble Cart with 24 Shallow Royal Blue Trays

The Gratnells Callero Plus Treble Cart is a high-capacity classroom storage solution designed to keep STEM materials organized, accessible, and easy to transport throughout the learning environment. Featuring 24 shallow Royal Blue trays, this mobile cart helps educators prepare, distribute, and store classroom resources while maximizing valuable floor space.

Designed for modern schools, makerspaces, libraries, and STEM labs, the cart combines smooth mobility, durable construction, and secure tray storage to support efficient classroom organization and flexible instruction.

Why Educators Use It

Teachers and STEM coordinators rely on the Callero Plus Treble Cart to organize classroom supplies, student projects, robotics components, science materials, and maker resources. Its mobile design allows instructional materials to move wherever learning happens while keeping supplies neatly organized and easily accessible.

Key Features

• Includes 24 standard shallow Royal Blue polypropylene storage trays.
• Treble-width frame provides approximately 33% more storage than standard trolley designs.
• StopSafe runners help prevent trays from being accidentally pulled completely out.
• Supplied with both feet and locking casters for either stationary or mobile classroom use.
• Large work surface can be used to display teaching materials or demonstrate activities.
• Durable steel frame supports up to 250 kg with trays rated for up to 5 kg each.

Classroom Applications

• Organize STEM, science, engineering, and robotics supplies.
• Store classroom kits, manipulatives, and shared instructional materials.
• Create mobile supply stations for collaborative learning activities.
• Support makerspaces, innovation labs, libraries, and technology classrooms.