{"product_id":"chartpak-expandable-tube-system","title":"Expandable Tube System","description":"\u003cp\u003eShipping portfolios and presentation boards becomes straightforward when your tube adjusts to match the contents rather than forcing materials to fit predetermined dimensions. Chartpak's Expandable Tube System extends from compact to extended lengths through modular expansion tubes that lock together securely, eliminating the frustration of oversized containers for shorter pieces or cramped rolls for longer work.\u003c\/p\u003e\n\u003cp\u003eThe base tube includes an adjustable carrying strap and protective end caps; expansion tubes sold separately let you build exactly the length you need as projects demand. Small diameter (2.5 inches) handles architectural plans, technical drawings, and standard prints, while large diameter (3.5 inches) accommodates presentation boards, multiple layered documents, or larger format work without crushing edges. Rigid plastic construction protects against impacts during transport and maintains document integrity through handling that would damage cardboard alternatives.\u003c\/p\u003e\n\u003cp\u003eConfigure your system once for a specific project length, then reconfigure when needs change. Architects carrying permit drawings to site meetings, designers transporting client presentations, or artists mailing limited edition prints all benefit from storage that adapts rather than compromises. The modular approach means you're not storing empty tube length between uses or struggling to protect materials that extend beyond fixed containers.\u003c\/p\u003e","brand":"Chartpak","offers":[{"title":"large middle expansion \/ 12 in. x 3 1\/2 in. \/ black","offer_id":48091515683045,"sku":"12557","price":10.03,"currency_code":"USD","in_stock":true},{"title":"small middle expansion \/ 12 in. x 2 1\/2 in. \/ black","offer_id":48091515715813,"sku":"28742","price":7.41,"currency_code":"USD","in_stock":true},{"title":"large tube with strap \/ 24 in. x 3 1\/2 in. \/ black","offer_id":48091515748581,"sku":"62886","price":20.05,"currency_code":"USD","in_stock":true},{"title":"strap \/ Default \/ blue","offer_id":48091515781349,"sku":"63748","price":13.8,"currency_code":"USD","in_stock":false},{"title":"small tube \/ 24 in. x 2 1\/2 in. \/ black","offer_id":48091515814117,"sku":"63845","price":16.18,"currency_code":"USD","in_stock":false},{"title":"large middle expansion \/ 12 in. x 3 1\/2 in. \/ gray","offer_id":48091515846885,"sku":"79250","price":7.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6890\/5701\/files\/s12557.jpg?v=1769733249","url":"https:\/\/www.texasart.mom\/products\/chartpak-expandable-tube-system","provider":"Texas Art Supply","version":"1.0","type":"link"}