Material:aluminum alloy,Acrylic Panel size: 34.1 * 23.5cm ERGONOMIC BOOK STAND for READING-Adjustable Book Holder with multi angles and heights elevate the book to fit your Eye-Leve, promote proper posture for better spinal health. STYLISH AESTHETICS- The board is made of highly light-transmitting acrylic for more pleasant reading. Struts and base made of high-quality lightweight aluminum alloy. ADJUSTABLE BOOK STAND with 360 ROTATING BASE - Make it easier to share ideas or show case with non-slip pad allows you to communicate without leaving work positions. The unique design with Double Rod Support Structure offer made it a more sturdy holder. WIDE BOARD with 2 FLEXIBLE PAPER CLIPS- keeps book opening, the rubber tips prevent paper damage.