Description: Ergonomic Posture Correction: Designed specifically for children, this posture corrector helps maintain proper reading and writing posture, good habitsAdjustable Height: Easily adjustable from 10.5cm to 15cm, this device accommodates different needs without causing neck strain, making it suitable for growing childrenEasy to Setup: Simply clip it onto any table up to 5cm thick and it's ready to use instantlyCompact and Convenient Storage: With 180 rotation feature, the corrector can be effortlessly folded away when not in useMaterial: Made of ABS material, this corrector is compatible various types of tables including study desks, computer desks, and round tables Size Chart: 10.5cmx17.5cmx3.5cm/4.13inchx6.89inchx1.38inchAdjustable Height:10.5cm-15cm/4.13inch-5.91inchMaximum clamping thickness:5cm/1.97inch Package Includes: 1 Sitting Posture Corrector Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. you a wonderful on-line shopping!