Posture Corrector: Kids posture corrector device for improving sitting posture, providing comfort, and offering a secure fit. Premium and Reliable: The sitting posture corrector is made of ABS and stainless steel material, which is sturdy, and wear resistant for a long time. Height Adjustable: 180 full view design does not obstruct the child's line of sight, allowing them to write freely in the correct sitting position. The height can be adjusted freely to suit children of different heights across various age groups. Easy Installation: Features clip clamp for 5cm thickness desk, easy to clip the bottom shelf to the table. Application: Back straightener brace is suitable for kids, boys girls, school, reading, and other occasions. Specification: Material: ABS and Stainless Steel Length25.5cm/10.04inch Height Adjustable16cm-25cm/6.30inch-9.84inch The thickness of the desktop can be clamped: 5cm/1.97inch Package Includes: 1 Posture Corrector Device Note: Please allow slightly errors due to manual measurement and different monitors.