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Spread chest and feel relaxed by pressing your back to the curved surface!
Back support tool to strengthen your back muscles, relieve stiff neck and shoulders, back and lower back pain, and maintain good posture!

Ramrod-straight back! Correct rounded back

Seat-Back Genki-kun

Stretch your back while lying down!
Use as a backrest of sofa or bed!

image based on the back to back exercise
based on the back to back exercise
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Benefits Dr.Hiro
Recommended for
How to Use


Seat-Back Genki-Kun helps you:

  • Helps stretche your backbone
  • SHelps spread your chest
  • Helps make the rounded back stretched and balanced back to the correct posture
  • Helps reduce stress or strains in the back
  • Helps strengthen your back muscles
  • Helps relieves stiff neck and shoulders
  • Helps reduce back and lower back pain
  • Those with stiff shoulders
  • Those with rounded back
  • Those with bad posture
  • Those with back or lower back pain

How to Use

1. To stretch your back placing it on the floor

     Correcting back posture by naturally spreading chest with
     your body weight
The use figure in a floor
The use figure in a floor
Correct the posture
Balance adjustment of right & left
Back relaxation
Stoop prevention
Effect Effect
Rounded back and body imbalance of right and left can cause body malfunction. The cushion with outer side shaped thinner than inside, so that it makes chest and stomach areas spread, balanced, and correct your posture.

2. Backrest cushion in a car

  Disperse the body weight by pressing your back muscles
  • Corrects your posture
  • Adjusts the body balance
  • Prevents backache and lower backache
At the time of intact At the time of use
At the time of intact At the time of use
Back sinks into the seat and makes faulty posture by pulling your shoulders forward The cushion with thinner outside than inside makes your chest and stomach spread and corrects your posture.


Sectional view
Sectional view Size:
54 x 32 x 4.5 cm
(21.6 x 12.8 x 1.8 in.)
280 g (9.4 oz.)


  • Use as directed and do not use it for other purposes than as described.
  • Do not exceed 10 minutes if you use while lying on it.
  • Stop using it if you feel pain to your back.
  • Keep away from fire.

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