Premiu Material: The superior materials are comfortable to sue, and will not harm your childs skin. Easy to Use: No need to install or assemble, can be used with fixed tabletop, suitable for most tables of different shapes and thickness. The clamp and baffle of some products are in the same direction, unscrew the adjusting part in the middle, and adjust the base into the opposite direction, which does not affect the normal use of the product. T- shaped Design: T- shaped no angular arc designed sitting corrector is safer, comfortable, no chin rest, It does not block the view of the desktop. Adjustable Posture Corrector: The posture corrector height of the stand can be adjusted freely, you can find the height that suits you and very easily to move, myopia corrector. Writing Posture Corrector: handwriting sitting corrector can be a good help for body deformation caused posture errors, and myopia, and can also help students having a good sitting habits.