Features: Cost-Efficient Bulk Packaging System: This triangle mailing tubes set offers a high-value, economical option for bulk packaging requirements. Including 50 tubes sized 18.25x2 inches, it suits long items like maps and scrolls. The white corrugated cardboard poster boxes provide functional and aesthetic benefits for daily use. Secure and User-Friendly Assembly Design: These poster tubes feature an easy, glue-free assembly with a unique locking mechanism for quick setup. The strong corrugated triangle box construction allows reuse while being fully recyclable. They help protect shipped or stored items and improve operational productivity Specifications: Material: corrugated cardboard Color: white Size: 24.25 x 2 x 2 inches / 61.6 x 5 x 5 cm (L/W/H) Package includes: 50 x Triangle mailing tubes Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays