KEEP Anti-Burst Pilates Ball 25cm
- Item Diameter: 9.8 inches
- Ball Type: Exercise Ball
- Material Type: PVC, Polyvinyl Chloride (PVC)
- Sport Type: Yoga
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, anti-burst ball suited to therapy and core exercises, with a size aimed at deeper stretching than a standard small ball.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0BFX4FP6KCategory: Exercise Balls
Colors Available
Need a different one? Pick on Amazon →
Overview
KEEP sizes this anti-burst exercise ball at 9.8 inches (25cm), built with a thickened wall and matte, non-slip surface for physical therapy, core work, or use as an office chair substitute.
The seller sizes this slightly above the common 9 inch mini ball to give a wider support base for spinal alignment work, and recommends inflating to only 70 to 80 percent for a softer, more contouring feel rather than fully firm.
- 9.8 inch (25cm) diameter
- 1300 lb anti-burst rating
- Matte non-slip exterior
- Doubles as an office chair substitute
Who it's for
Useful for physical therapy exercises, core stability work, or swapping in for a desk chair to encourage posture changes. Not intended as a full size stability ball for standing balance work, given its compact 9.8 inch diameter.
Pros and cons
- Deflates slowly rather than bursting if punctured
- Matte, non-slip surface for seated or floor use
- PVC material free of listed harmful additives
- 9.8 inch size is compact, not a full size stability ball
- Best comfort requires under-inflating to 70 to 80 percent, not full firmness
Performance notes
The honeycomb microporous foam wall is built to deflate slowly rather than burst under puncture, with a listed anti-burst rating of 1300 pounds. The matte surface adds grip against slipping when used as a seat or in floor exercises.
Specifications
| Brand | KEEP |
|---|---|
| Dimensions & fit | |
| Item Diameter | 9.8 incheslower than 52% of 49 exercise balls |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type | PVC, Polyvinyl Chloride (PVC) |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Ball Type | Exercise Ball |
| Sport Type | Yoga |
| Number of Items | 1 |
Closest rivals on specs
Compare all side by side
Frequently asked questions
What size is the KEEP exercise ball?
It measures 9.8 inches (25cm) in diameter, sized slightly larger than a standard 9 inch mini ball for a wider support base.
Is the KEEP ball safe if it gets punctured?
The seller states it uses anti-burst honeycomb foam construction rated to 1300 pounds, designed to deflate gradually rather than burst.
Can this ball be used as an office chair?
Yes, the seller markets it as a chair substitute for posture correction, in addition to physical therapy and core exercises.