US
ZELUS

ZELUS Half Balance Ball Trainer 25 Inch

  • Color: Blue
  • Maximum weight recommendation: 600 pounds
  • Unit Count: 1
  • Material: Polyvinyl Chloride (PVC)

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

Our verdict

This half ball trainer earns its keep mainly on the flat, non-rolling base and the bundled bonus ball. Worth it if a stationary wobble trainer is genuinely what you want, not a bouncy full stability ball.

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ASIN: B08G4CXN16Category: Exercise Balls

Colors Available

BlackBlue

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Overview

This half ball trainer sits on a 25 inch flat, non-slip base rather than rolling like a full stability ball, with a foot pump, two resistance bands, and a separate full-size exercise ball included in the box.

This is a half ball balance trainer, not a standard round stability ball, so the base stays flat on the floor while the dome flexes underfoot or underhand. The bundle folds in a second, fully round exercise ball plus two resistance bands, covering stretching and light resistance work alongside the balance training.

  • 25 inch wide flat base with anti-slip TPR matting
  • 8 inch dome height for a moderate wobble range
  • Two resistance bands with cushioned grips included
  • Foot pump and a second full-size exercise ball in the box

Who it's for

Suits anyone building a home core and balance routine who wants a stationary, flat-footed trainer rather than a bouncy full round ball, including older adults working on stability. Less suited to lifters who specifically want a rolling stability ball for slam or bounce work.

Pros and cons

Pros
  • Flat, anti-slip base stays put during standing or plank work
  • Comes with a second full exercise ball and two resistance bands
  • Foot pump included, no separate inflator needed

Performance notes

The flat ABS base with anti-slip TPR matting keeps the dome from sliding during single-leg or push-up work, while the textured PVC surface adds grip for hands and feet. The included foot pump handles inflation without a separate air source, and the 8 inch dome height sets a moderate wobble range compared to taller trainers.

Specifications

BrandZELUS
Dimensions & fit
Maximum weight recommendation600 pounds
Item Dimensions L X W X H25 × 25 × 8 inches
Size25 inches (L) x 25 inches (W) x 8 inches (H)
Capacity & performance
Age Range DescriptionAdult
Construction & materials
ColorBlue
MaterialPolyvinyl Chloride (PVC)
Included components
Unit Count1
Other details
Part NumberBAN

Frequently asked questions

Does the ZELUS half ball come with a pump?

Yes, a foot pump ships with the set for inflating the dome.

Is this a full round stability ball or a half ball?

It is a half ball wobble trainer with a flat base; the set also includes a separate full round exercise ball.

What keeps the base from sliding on hard floors?

An anti-slip TPR mat on the underside of the 25 inch base is designed to grip the floor during use.