Features 1、Get Right Sitting Posture: This sitting posture reminder can gently adjust their sitting posture, protect their eyes and spine, and allow them to grow healthily. 2、Easy To Install And Use: Just clip the base part on the table, then adjust the height of the device according to the child's height, the adjustable height range is 5.9-8.3in. 3、Benefits: Helps improve bone deformation caused by wrong sitting posture, and also cultivate good sitting habits. Make poor posture a thing of the past and let your child sit right. 4、Full Viewing Angle: No blocking line of sight, keep you in a good sitting position without constant reminders, protects vision and contributes to the normal development of the spine. 5、Exquisite Workmanship: Attention to details, finely polished button, non slip base, adopts soft silicone material, skin friendly, comfortable to use. Specification Item Type: Sitting Posture Reminder Material: PP, ABS, Silicone Adjustable Height Range: Approx. 15-21cm / 5.9-8.3in Install: Can be clipped on the table Package List 1 x Posture Reminder 1 x Base