Amazon.com: 3 Pack Extendable Poster Tubes, Telescoping Art Transport Tube, Water-Resistant Storage Tube for Documents Blueprints Artwork - Hard Plastic Black, 18 Inches to 27.5 inches with 2.75 Inch Opening : Arts, Crafts & Sewing
Stafford Mfg.'s rigid telescoping tube clamp has quick-release handle
Amazon.com: CALPALMY 2-Pack Extendable Poster Tubes Expand from 30.5” to 49” with Shoulder Strap and Handle | Carry Documents, Blueprints, Drawings and Art | Black Portable Durable Round Storage Cases : Arts, Crafts & Sewing