The TRNR exercise ball is an essential training tool, offering greater core strength, balance, coordination, range of motion, joint stability, and posture alignment.

By adding instability to workouts, the deep muscle groups of the abdomen, back, and pelvic floor are forced to work intensively to maintain your position. This makes it ideal for strengthening these often neglected muscles, preventing muscle imbalances, back pain, and injuries.

Though primarily designed for core strength, the exercise ball can also be used in a wide range of exercises targeting the arms, hips, glutes, and legs.

Includes a hand pump and an innovative TRNR dual tool, allowing you to inflate the ball to the correct size (by aligning the two holes with the indications on your ball), as well as remove the plug (using the tip with the holes).

• Diameter 55 cm, suitable for users under 1.65 m.
• Free of Latex/BPA/Phthalates.
• High quality with extra thick construction material.
• Non-slip and burst-resistant for maximum safety.
• Static strength rating of 455 kg.
• With a matte finish and personalized TRNR design.

• Exercise ball.
• Innovative dual tool.
• Hand pump.
• Exercise poster.
• Free app.