100% natural bamboo, eco-friendly, sturdy and strong, easy to clean, and long service time. 6 adjustment options locking into place. With the non-slip interface and metal support stand Eye-level reading for comfort. Lightweight and folds up nicely, easy to carry. Great ideal for a textbook, cookbook, sheet music, reading, piano, laptop, receipt, etc. 1 year 100% satisfaction guarantee warranty & kindly customer service.