US
Therapist's

Therapist's Choice® Mini Exercise Ball 23cm

  • Exercise Ball
  • Polyvinyl Chloride (PVC)
  • Exercise & Fitness, Yoga
  • inflatable
4.4/ 5 on Amazon516Amazon ratings50+bought last month4.0ProductDome score
Medium confidenceLast refreshed Jul 5, 2026Amazon data + ProductDome analysis · methodology
Best forYou need a small, soft ball for PT exercises, bridges or shoulder rehab and don't mind a fiddly first inflation

For PT and light core work the size and softness deliver, but plan on a standard pump needle if the included straw gives trouble sealing it.

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ProductDome scorecard

How it ranks among the 88 exercise balls we track

4.0/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.5★4.4

4.4★ across 516 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 629 ratings3.4

516 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score2.3

50+ bought on Amazon last month.

Data quality · 11% of score5.0

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 88 exercise balls we track - how the scorecard works · full exercise balls data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A 9-inch (23cm) soft PVC exercise ball that ships deflated, intended for core work, Pilates and physical therapy exercises where a small ball provides light resistance or balance.

The ball's size makes it a therapy and light-resistance tool rather than a stability ball for sitting or slamming; reviewers described using it between the knees for bridges, against a wall for shoulder rehab, and for hand therapy. The one recurring hiccup is inflation: the included straw inflator lets air escape while you swap in the plug, and more than one reviewer solved it by using a standard pump needle instead.

  • 9 inch (23cm) diameter
  • Ships deflated in clinical packaging
  • Soft rubber PVC surface
  • Includes plug and straw inflator

Who it's for

Suits people doing physical therapy exercises at home, or Pilates and core work needing a small, soft ball between the knees or against a wall. Less suited to anyone who wants foolproof inflation with the included tools alone.

What buyers say

From Amazon customer reviews.

Reviewers, many using the ball for physical therapy after surgery, praised its size, softness and how well it holds air once sealed, but repeatedly flagged that the included straw inflator lets air escape before the plug can be inserted, with some switching to a standard pump needle instead.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Compact, soft size suits PT and core exercises
  • Holds air well once sealed
  • Gentle surface for post-surgical rehab work
What to check first
  • Included straw inflator makes sealing tricky
  • No valve, so air can escape during setup

Performance notes

Once inflated, the ball holds air reliably over weeks of use according to several reviewers, and its soft rubber surface is gentle enough for post-surgical rehab work like wall presses after a shoulder replacement. The friction point is getting air in: the supplied straw requires inflating and sealing quickly before pressure escapes, which several reviewers found awkward until they switched to a standard inflation needle on a pump.

Specifications

BrandTherapist's
Dimensions & fit
Item Weight5.6 ounces
Item Diameter9 inches
Size9 inches
Capacity & performance
Age Range DescriptionAdult
Construction & materials
Material TypePolyvinyl Chloride (PVC)
Construction Typeinflatable
Colorblue
Included components
Unit Count1
Other details
Sport TypeExercise & Fitness, Yoga
Number of Items1

How it compares

This product against the closest alternatives we track in exercise balls.

ProductAmazon ratingRatingsProductDome score
Therapist's Choice® Mini Exercise Ball 23cmThis product4.4 / 55164.0 / 5
Primasole Exercise Ball for Balance Stability Fitness Workout Yoga Pilates at Home Office…Primasole4.6 / 52,7004.5 / 5
ProBody Pilates Small Exercise BallProBody4.5 / 513,0594.4 / 5
Trideer Exercise BallTrideer4.6 / 55,8044.4 / 5
Exercise Ball - Yoga Ball for Pilates & Fitness - Birthing for Pregnancy, Stability…Exercise4.7 / 52,3004.4 / 5
Frequently asked

Questions about the Therapist's exercise balls

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What size is the Therapist's Choice Mini Exercise Ball?

It measures 23cm, or about 9 inches, in diameter.

Does the Therapist's Choice ball arrive inflated?

No, it ships deflated and includes a straw inflator and plug so you inflate it yourself.

Is this ball suitable for physical therapy after surgery?

Reviewers used it for post-surgical shoulder rehab exercises such as wall presses, on their therapist's recommendation.