TRX STABILITY BALL - Versatile Core and Balance Trainer

In this review the TRX STABILITY BALL comes across as a simple, dependable fitness tool for anyone wanting to add instability to core, balance and mobility work. The biggest reason to buy is obvious: it turns basic movements into effective core and proprioception challenges, and it ships deflated so it is easy to store or travel with. The reviewer found the ball useful for floor crunch variations, supported planks and single-leg balancing drills and appreciated that two size options (55 cm and 65 cm) cover common height ranges.

Key Features

• Size options: Available in 55 cm and 65 cm diameters so users can choose the size that matches their height for safer alignment and more effective exercise.
• Ships deflated: The ball arrives deflated which makes it compact for shipping and simple to inflate at home or take on the road.
• Core and balance training: Adding instability to moves like crunches, planks and woodchops increases core engagement and functional strength for sport and rehab.
• Durable anti-slip vinyl: The construction resists punctures under normal use and provides a stable surface for dynamic and static exercises.
• Portable and packable: Easy to deflate and pack, so it supports workouts away from home and transitions between gym, studio and travel.
• TRX Training Club access: A trial to the TRX app gives guided workouts that expand how the ball can be used across strength, mobility and conditioning.

Who It's For

The TRX STABILITY BALL is well suited to home exercisers, physical therapy patients and athletes who want a low-cost tool to increase core activation, improve balance and add variety to conditioning sessions. It fits anyone who needs a compact, portable option that can be deflated for travel or storage.

Those who should look elsewhere include users needing extremely high load capacity for heavy wall-ball throws or plyometric landings and people who prefer a pre-inflated, space-filling stability ball out of the box; the ball arrives deflated so you will need a pump to set it up.

Pros & Cons

Pros

• Two size options provide better ergonomic fit across a range of heights.
• Durable anti-slip vinyl offers confidence for balance and floor work.
• Deflates for easy travel and storage, making it useful for on-the-go fitness.
• Trial access to the TRX Training Club app expands exercise ideas and programming.

Cons

• Ships deflated so a pump is required before first use.
• Not intended for high-impact throws or heavy external loading without caution.

Specifications

Brand	TRX
Available sizes	55 cm, 65 cm diameter
Recommended heights	55 cm: about 5'1' to 5'8'; 65 cm: about 5'8' to 6'1'
Ships	Deflated in the box
Material	Durable anti-slip vinyl
Includes	Stability ball and trial to TRX Training Club app

Our Verdict

The TRX STABILITY BALL is a practical, affordable way to add instability to core, balance and rehab work and represents good value for most home users and trainers. Choose the size matched to your height, plan to inflate it at home, and expect a durable, portable tool that pairs well with guided workouts from the TRX Training Club.

Frequently Asked Questions

What size should I choose?
The 55 cm ball suits people roughly 5'1' to 5'8' tall; the 65 cm is better for about 5'8' to 6'1'. Pick the size that allows knees at 90 degrees when seated on the inflated ball.

Does it come inflated?
No, the ball ships deflated so you will need a pump to inflate it before first use; this also makes it easy to pack for travel.

Is it puncture resistant?
The ball is made from durable anti-slip vinyl designed to resist popping during regular exercise, though extreme impacts or sharp objects should be avoided.