{"product_id":"gratnells-callero-custom-low-level-8-deep-tray-adder-unit-sunshine-yellow","title":"Gratnells Callero Custom Low Level 8 Deep Tray Adder Unit – Silver Frame with Sunshine Yellow Trays","description":"\u003cp\u003eThe Gratnells Callero Custom Low Level 8 Deep Tray Adder Unit provides compact, high-capacity classroom storage designed for modern learning environments. Built around the trusted Gratnells tray system, this modular unit helps educators organize STEM materials, classroom resources, and maker supplies while maximizing valuable floor space.\u003c\/p\u003e\n\n\u003cp\u003eDesigned as part of the expandable Callero Custom range, this low-profile adder unit integrates seamlessly with compatible starter frames to create flexible storage layouts that can grow alongside classroom needs.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Educators Use It\u003c\/h3\u003e\n\n\u003cp\u003eSchools, STEM labs, libraries, and makerspaces rely on organized storage to keep learning materials accessible and protected. The low-level design supports student independence, while the modular system allows educators to build customized storage solutions for changing classroom layouts and instructional needs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes 8 deep Sunshine Yellow storage trays for larger classroom materials and supplies.\u003c\/li\u003e\n  \u003cli\u003eExpandable adder unit integrates with Gratnells Callero Custom storage systems.\u003c\/li\u003e\n  \u003cli\u003eCompact low-level footprint provides high-capacity storage without occupying excessive classroom space.\u003c\/li\u003e\n  \u003cli\u003eDurable steel frame supports up to 250 kg with antimicrobial polypropylene trays rated for 5 kg each.\u003c\/li\u003e\n  \u003cli\u003eStopSafe runners help prevent trays from being fully removed for improved classroom safety.\u003c\/li\u003e\n  \u003cli\u003eRounded frame design eliminates sharp edges for child-friendly learning environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eClassroom Applications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOrganize STEM kits, robotics parts, and engineering materials.\u003c\/li\u003e\n  \u003cli\u003eStore science lab equipment and classroom supplies within easy student reach.\u003c\/li\u003e\n  \u003cli\u003eCreate flexible storage walls in makerspaces, libraries, and innovation labs.\u003c\/li\u003e\n  \u003cli\u003eSupport collaborative classrooms with accessible shared learning resources.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRATNELLS","offers":[{"title":"Default Title","offer_id":48601682051321,"sku":"CADD13440202","price":1222.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0692\/0953\/files\/CADD13440202_-_Callero_Custom_Low_Double_Adder_Unit_8_Deep_Sunshine_Yellow_Trays.avif?v=1782578838","url":"https:\/\/stemclassrooms.com\/products\/gratnells-callero-custom-low-level-8-deep-tray-adder-unit-sunshine-yellow","provider":"STEMclassrooms.com","version":"1.0","type":"link"}