Feature 1The corrector can effectively correct writing sitting posture, prevent bone deformation caused by incorrect posture, and avoid damage to vision. 2The height of the stand can be adjusted freely, adjustable height: 15cm/5.9in19cm/7.5in, allows you to find the height that suits yourself. 3Tshaped arc shape, no angular, safer and more comfortable easy fit without restraint to chin. 4No need to install, just clip and use, no need to assemble, can be used with fixed table, suitable for most tables of different shapes and thicknesses. 5Nonslip silicone pad, protect the desktop, fine threaded workmanship, feel comfortable to hold, not hurt your hands. 6Simple outline of the desktop without obstruction, easy to enjoy learning time.SpecificationConditon: 100% Brand NewItem Type: Sitting Posture CorrectorMaterial: ABS+SiliconeColor: WhiteFunction: Can effectively correct children' sitting postureSize:Length: Approx. 16.3cm/6.4inWidth: Approx. 21cm/8.3in(Manual Measurement, forreferenceonly, thank you for your understanding) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PostureCorrector