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The Inflatable PT Ball in 22-inch (55 cm) size is a compact-to-mid-range therapy and exercise ball designed for physical therapy, rehabilitation, and fitness use. Built from heavy-duty ribbed vinyl with a 600-pound weight capacity, this ball is well suited for shorter adults and older pediatric users who need a ball smaller than the standard 65 cm size for proper seated alignment, as well as for upper extremity and targeted core exercises where a smaller diameter is preferred. Inflates easily with a standard air inflator. Orange color for easy identification in clinical and gym settings. Sold individually in plastic bag packaging. Country of Origin: China.
The 22-inch PT ball is a practical choice for physical and occupational therapists working with shorter adult patients — generally those under 5'4" — who need a smaller ball to maintain proper hip and knee alignment during seated therapy exercises. It is also appropriate for older pediatric patients who have outgrown the 18-inch ball but are not yet ready for a full 65 cm adult therapy ball. Home users of shorter stature performing seated core, balance, or upper extremity exercises will find the 55 cm size more comfortable and manageable than a larger ball. The 600 lb weight capacity ensures suitability across a broad range of users.
What height user is the 22-inch / 55 cm ball designed for?
A 55 cm ball is generally recommended for users approximately 5'0" to 5'4" tall when used as a seated exercise or therapy ball, with the goal of maintaining hips and knees at roughly 90-degree angles when seated. It is also commonly used for older pediatric patients who have outgrown smaller balls. Your physical therapist can confirm the correct size for your individual needs and treatment goals.
Is an air pump included?
No. An air inflator or pump is required to inflate the ball but is not included with this listing. A standard ball pump or electric inflator with a needle tip attachment is compatible. Inflate to the recommended 22-inch diameter and check firmness before use — do not over-inflate.
How does this compare to the other PT ball sizes?
The 22-inch (55 cm) ball sits between the 18-inch (45 cm) pediatric ball and the standard 26-inch (65 cm) adult therapy ball. It is the right choice for shorter adults who find the 65 cm ball too large for comfortable seated alignment, or for older children who need more surface area than the 45 cm ball provides. If you are between 5'4" and 5'6", you may be on the border between the 55 cm and 65 cm sizes — consult your therapist for a recommendation.
How do I care for and store the PT ball?
Wipe the surface with a damp cloth and mild soap after use. Avoid sharp objects, rough surfaces, and prolonged exposure to direct sunlight or extreme heat, which can degrade the vinyl over time. Store partially deflated if space is limited, and re-inflate to the correct diameter before use. Inspect regularly for signs of wear, cracking, or slow leaks.