{"product_id":"gratnells-callero-tall-maker-adder-storage-unit-28-shallow-7-deep-royal-blue","title":"Gratnells Callero Tall Maker Adder Storage Unit with 28 Shallow \u0026 7 Deep Royal Blue Trays","description":"\u003cp\u003eThe Gratnells Callero Tall Maker Adder Unit is a modular classroom storage solution designed to maximize organization while minimizing floor space. Featuring 28 shallow and 7 deep Royal Blue trays, it provides flexible storage for STEM equipment, classroom supplies, robotics components, and maker materials. Its durable steel frame and student-friendly design make it ideal for busy learning environments.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Educators Use It\u003c\/h3\u003e\n\n\u003cp\u003eSchools, makerspaces, libraries, and STEM labs rely on the Callero system to keep learning materials organized, accessible, and ready for instruction. The expandable modular design allows storage systems to grow alongside evolving classroom needs while supporting safe, independent student access.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eIncludes 28 shallow and 7 deep Royal Blue trays for organized classroom storage\u003c\/li\u003e\n\u003cli\u003eTall modular adder unit expands existing Callero Custom storage systems\u003c\/li\u003e\n\u003cli\u003eCompact footprint provides high-capacity storage without sacrificing classroom space\u003c\/li\u003e\n\u003cli\u003eSteel frame supports up to 250 kg with 5 kg capacity per tray\u003c\/li\u003e\n\u003cli\u003eStopSafe runners help prevent trays from being fully removed for added classroom safety\u003c\/li\u003e\n\u003cli\u003eSmooth, rounded frame design is well suited for student learning environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eClassroom Applications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eStore robotics kits, engineering components, and STEM project materials\u003c\/li\u003e\n\u003cli\u003eOrganize classroom makerspace tools and consumable supplies\u003c\/li\u003e\n\u003cli\u003eCreate accessible resource storage for science and technology labs\u003c\/li\u003e\n\u003cli\u003eSupport collaborative learning with clearly organized student materials\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRATNELLS","offers":[{"title":"Default Title","offer_id":48603369570553,"sku":"CADD342144060606","price":3359.14,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0692\/0953\/files\/CADD342144060606_-_Callero_Custom_Tall_Maker-tall_Adder_Unit_28_Shallow_3_Deep_Tilting_4_Deep_Royal_Blue_Tray.avif?v=1782648098","url":"https:\/\/stemclassrooms.com\/products\/gratnells-callero-tall-maker-adder-storage-unit-28-shallow-7-deep-royal-blue","provider":"STEMclassrooms.com","version":"1.0","type":"link"}