Gratnells Callero Tall Maker Adder Unit with 28 Shallow & 7 Deep Jolly Lime Trays – Silver Frame

The Gratnells Callero Tall Maker Adder Unit is a high-capacity classroom storage solution designed to keep STEM resources, maker materials, and teaching supplies organized and easily accessible. Featuring 28 shallow and 7 deep Jolly Lime trays within a durable silver steel frame, it helps maximize storage while minimizing floor space in busy learning environments.

Built for schools, makerspaces, libraries, and innovation labs, this modular storage unit creates a safer, more organized classroom where students and educators can quickly access materials and maintain productive learning spaces.

Why Educators Use It

Hands-on STEM learning depends on organized access to tools, components, and classroom resources. The Callero Tall Maker Adder Unit supports efficient classroom management by providing flexible, expandable storage that adapts to changing curriculum needs while encouraging student independence through safe, easy-to-access trays.

Key Features

• Includes 28 shallow and 7 deep storage trays for organizing a wide variety of classroom materials.
• Compact footprint provides high-density storage without taking up valuable instructional space.
• Durable steel frame supports up to 250 kg for long-lasting classroom use.
• StopSafe runners help prevent trays from being fully removed, improving classroom safety.
• Smooth, rounded frame design minimizes sharp edges for student-friendly environments.
• Modular Callero system allows additional storage units to be added as classroom needs grow.

Classroom Applications

• Store robotics parts, engineering kits, and maker supplies.
• Organize STEM lab equipment and classroom consumables.
• Create accessible resource stations for collaborative learning.
• Support makerspaces, libraries, innovation labs, and technology classrooms.