Learning Chair, Learning Chair Swan (Swan) Sky Blue, Height Adjustable

I accidentally purchased two children's study chairs from Rakuten Ichiba. Since returns were not possible, I am listing them here.
The product ordered is the mesh type in sky blue.
The item listed on Mercari is unopened (still in its original cardboard packaging). I have included photos of the chair we opened at home for reference.
The casters move smoothly, and the height adjustment is also smooth, making my child very satisfied.

[Rakuten Website where purchased]
https://item.rakuten.co.jp/mokuhouse/250001/?scid=wi_ich_iphoneapp_item_share

The following is a repost from another website.
Study Chair Swan

The Swan study chair features bright white resin.
It is packed with features to help children comfortably face their desks, such as seat height adjustment and load-locking casters.

■ Improved concentration with correct posture
Poor posture can negatively affect a child's growth and reduce concentration. The Swan allows for adjustment of not only seat height but also seat and backrest depth. This ensures that children can concentrate at their desks in the optimal position as they grow.

■ Load-locking casters prevent wobbling
Each caster is equipped with a load-locking function. When weight is applied, the casters lock in place, preventing the chair from wobbling during study. The load lock can also be released by turning the lever to OFF. The seat can rotate 360° independently. By locking the rotation with the knob on the support column, the casters can be rotated along with the seat.

■ Circular footrest for stable leg support
Children cannot maintain correct posture if their feet are not properly supported. The circular footrest allows them to rest their feet securely regardless of how they are sitting.

■ Comfortable for long periods of sitting
The backrest and seat are made with cushioning material that has moderate elasticity, making them comfortable even for long periods of sitting and allowing for better concentration on studies. The large backrest provides ample support for children as they grow.

*This product requires customer assembly.
*The load lock activates at approximately 30kg.
*The underside of the seat uses natural wood and recycled by-products from lumber processing.