{"product_id":"gratnells-callero-custom-low-level-12-deep-tray-adder-unit-sunshine-yellow","title":"Gratnells Callero Custom Low Level 12 Deep Tray Adder Unit – Silver Frame with Sunshine Yellow Trays","description":"\u003cp\u003eThe Gratnells Callero Custom Low Level 12 Deep Tray Adder Unit is a modular classroom storage solution designed to expand existing Callero Custom configurations. Featuring a durable steel frame and 12 deep Sunshine Yellow trays, it provides organized, space-efficient storage for STEM materials, classroom resources, and maker supplies. Its compact footprint helps maximize valuable learning space while keeping frequently used materials easily accessible.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Educators Use It\u003c\/h3\u003e\n\n\u003cp\u003eSchools, makerspaces, libraries, and STEM learning environments rely on flexible storage that grows alongside evolving classroom needs. This adder unit allows educators to create customized storage systems that improve organization, encourage student independence, and keep instructional materials readily available for hands-on learning.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eExpandable low-level adder unit designed for Callero Custom storage systems.\u003c\/li\u003e\n\u003cli\u003eIncludes 12 durable deep trays in Sunshine Yellow for high-capacity organization.\u003c\/li\u003e\n\u003cli\u003eCompact 16.9-inch depth maximizes storage while conserving classroom floor space.\u003c\/li\u003e\n\u003cli\u003eHeavy-duty steel frame supports up to 250 kg with trays rated for 5 kg each.\u003c\/li\u003e\n\u003cli\u003eStopSafe runners help prevent trays from being pulled out too far for added classroom safety.\u003c\/li\u003e\n\u003cli\u003eSmooth, rounded frame design minimizes 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\u003eStore robotics kits, engineering materials, and STEM project components.\u003c\/li\u003e\n\u003cli\u003eOrganize classroom supplies by subject, grade level, or activity.\u003c\/li\u003e\n\u003cli\u003eCreate modular maker and innovation spaces with expandable storage.\u003c\/li\u003e\n\u003cli\u003eProvide accessible resource stations that encourage independent student use.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GRATNELLS","offers":[{"title":"Default Title","offer_id":48601625067769,"sku":"CADD0744020202","price":1517.92,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0692\/0953\/files\/CADD0744020202_-_Callero_Custom_Low_Treble_Adder_Unit_12_Deep_Sunshine_Yellow_Trays.avif?v=1782578121","url":"https:\/\/stemclassrooms.com\/products\/gratnells-callero-custom-low-level-12-deep-tray-adder-unit-sunshine-yellow","provider":"STEMclassrooms.com","version":"1.0","type":"link"}