Gratnells Callero Plus Treble Storage Cart with 12 Deep Sunshine Yellow Trays

The Gratnells Callero Plus Treble Storage Cart is a high-capacity classroom organization solution designed to keep STEM materials accessible, organized, and easy to transport throughout the learning environment. Featuring 12 deep Sunshine Yellow trays and a durable steel frame, this mobile storage cart helps educators efficiently manage hands-on learning resources while maximizing valuable classroom space.

Designed for schools, makerspaces, STEM labs, libraries, and collaborative learning environments, the Callero Plus Treble Cart combines generous storage capacity with smooth mobility. Large braked casters, ergonomic handles, and the Gratnells StopSafe runner system help teachers safely move and access classroom materials while supporting organized, student-centered learning.

Why Educators Use It

Busy classrooms require storage that is both flexible and dependable. The Callero Plus Treble Cart provides organized access to STEM kits, robotics components, science equipment, engineering supplies, and maker materials, helping educators prepare lessons more efficiently while encouraging student independence during classroom activities.

Key Features

• Includes 12 deep Sunshine Yellow polypropylene storage trays for high-capacity organization.
• Treble-width design provides approximately 33% more storage than standard trolley configurations.
• StopSafe runners help prevent trays from being accidentally pulled out too far.
• Supplied with both braked casters and feet for either mobile or stationary installation.
• Durable steel frame supports up to 250 kg with tray capacities of up to 5 kg each.
• Large work surface and ergonomic handles make transport and classroom demonstrations easy.

Classroom Applications

• Organize STEM kits, robotics components, and engineering materials.
• Store science lab equipment and classroom investigation supplies.
• Create mobile makerspace resource stations between classrooms.
• Manage shared classroom materials for collaborative learning activities.