Gupposu Small [Improve posture just by gripping] [Improve hunchback and back pain]

Gupposu: Improve Your Posture Just by Holding It! (For Back and Waist Pain Relief)

Gupposu is a posture care product designed to improve your writing posture.

Recommended for children around 1st to 2nd grade of elementary school who are just starting to learn to read and write. By improving writing posture, it can lead to increased concentration during study, relief from stiff shoulders, prevention and correction of slouching, and prevention of vision decline.

It can be used not only by children but also by junior high and high school students studying for exams, and adults who want to improve poor posture, stiff shoulders, headaches, and back pain from teleworking or remote work.

Size:
Small: Approx. 7.5cm x 6.5cm (including rubber sponge)

Please measure your palm width to choose the correct size.
Palm size less than 7cm... Small

I purchased this item but only used it once. There is one scratch, but it was there from the beginning. Please check the photos.