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Ergonomic Balance Chair, Proportion Chair, with Auxiliary Cushion

★★★★★ 4.5 rating · 19 reviews · 187+ sold
$36.66 $47.6579998016357 30% OFF
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Product Details

Ergonomic adjustable height balance chair with a gray fabric finish.

This appears to be a used Miyata Seisakusho Proportion Chair.
It can be used by both children and adults, so I purchased it used several years ago for back pain relief and posture correction. However, I only used it a few times and it has been stored for a long time. It is a wooden product and can be used for a long time, but I am selling it due to decluttering and needing more space.

The cushion might be a bit saggy? There are no pets or smoking, so there is no odor, but there are signs of use. Please refrain from purchasing if you are concerned about used items.

For shipping, I will remove one of the center adjustment screws to make it smaller.
It is easy to reattach, so please understand.
The item will be wrapped in a plastic bag for shipping.
I believe it will be between 140-160 size.

The following is quoted from the manufacturer's information.
■ Miyata Seisakusho Proportion Chair
■ Size: Width 48.5 x Depth 61-68 x Height 43-64 cm
■ Material: Upholstery: Acrylic, Plywood, Urethane, Natural Wood (Lacquer finish)
■ Color: Brown
■ Other: Auxiliary cushion included

Thank you for looking.

Category
Kids' Chairs & Study Chairs
Brand
Miyatake Seisakusho
Condition
Some scratches/marks
Shipping
Included in price (by seller)
From
Aichi

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (19)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User6204386
★★★★★
2026-11-07

Material durável, produto funcional e confiável.