US
Trideer

Trideer Mini Physical Therapy Ball 9 Inch

  • 9 inch diameter mini ball
  • 0.21 kg, PVC with anti-slip texture
  • Seamless build, inflation straw included
  • 1 year warranty, green

Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A small PVC ball for between-the-knee squeezes, Pilates and core work. The listing gives no weight limit, so check that before using it as a seat.

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ASIN: B0B49VL66TModel: TRUSAM-YBAM-PVFR23Category: Exercise Balls

Colors Available

Forest(with pump)Green(With Inflation Straw)

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Overview

Trideer sells this mini ball for between-knee squeezes, home rehab and Pilates core work. A textured anti-slip surface covers a seamless PVC shell, and a straw or pump inflates it.

The reason to look is the small size and textured surface for targeted core and inner thigh work. The limitation is that the listing gives no weight limit and no pressure guidance.

Who it's for

Pilates students and people doing guided home rehab can use it between the knees or under the back for support. It is too small to serve as a seat, and buyers who need a load rating should look elsewhere.

Pros and cons

Pros
  • Small size for targeted work
  • Textured anti-slip surface
  • Seamless PVC construction
  • Inflation straw included
Cons
  • Weight limit not listed
  • No pressure guidance listed
  • Not a seat-size ball

Performance notes

Squeezing the ball between the knees makes the inner thigh and core work against the air pressure. A firmer fill gives more resistance and a softer fill is gentler on the joints. The textured surface resists slipping against clothing or skin.

Specifications

BrandTrideer
ModelTRUSAM-YBAM-PVFR23
Dimensions & fit
Item Diameter9 incheslower than 55% of 43 exercise balls
Size9 inch
Item weight0.21 kilograms
Item Weight0.21 kg
Capacity & performance
Age Range DescriptionAdult
Construction & materials
Construction TypePVC with textured anti-slip surface
Material TypePVC
ColorGreen
Included components
Included ComponentsPilates ball and accessories, inflation straw
Unit Count1 Count
Warranty & support
Warranty Description1 year
Other details
Ball TypeExercise ball
Stitching TypeSeamless
Sport TypeExercise & Fitness

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Frequently asked questions

How do I inflate and care for the Trideer 9 inch ball?

The listing says it comes with an inflation straw and can also be inflated with a pump. It gives no cleaning instructions.

Can I sit on the Trideer mini ball?

The listing names between-knee use, Pilates and core training, and gives no weight limit. It is not described as a seat.

What material is the ball made from?

The shell and core material are listed as polyvinyl chloride (PVC).

Is the Trideer ball for adults?

Yes. The age range reads adult.