Therapeutic Stability Ball Chairs

An innovative, patent pending seating adaptation designed to help exceptional students in classroom, therapeutic settings, and home.

Also designed to give typical students a stimulative and energy absorbing break from regular hard surface classroom seating.

  • Helps improve posture
  • Encourages more time on task
  • Assists in therapy sessions
  • Provides sensory options
  • Moderates repetitive movement

Available in adult sizes for people who seek an alternative to conventional desk chairs.

  • Comfort
  • Improves posture
  • Helps maintain muscle tone

Size Large (L), model C-55 mounted on
a dolly, model DLY-L for mobility

AlertSeat - Therapuetic Ball Chair - Medium Size, B-45 with 1" Velcro straps standard on all AlertSeats

Medium Size, B-45 with 1″ Velcro straps standard on all AlertSeats

Alert Seat Therapeutic Ball Chair With Convenient Handle

Convenient Handle

Alert Seat Therapeutic Ball Chair With Anti-Microbial Fabric

Anti-Microbial Fabric

Alert SeatTherapeutic Ball Chair with Dolly Options

Dolly Options

Alert Seat Therapeutic Ball Chair with Two Tone Color

Two-Tone Color

Alert Seat Therapeutic Ball Chair with Velcro Straps

Velco Straps

Alert Seat Therapeutic Ball Chair Alert Seat Therapeutic Ball Chair with Velcro Straps

Interior ball ships delated with a pump and instructions


Three-part seating system


  • Attractive steel design
  • Stable on rubber feet
  • Durable 300lb+ capacity
  • Powder-coated or chrome-plated finish

Optional (Separate) Caster Dolly for Base

  • For greater mobility
  • Full 360° swivel
  • Wheel brake for stationary use
  • Steel, wire-frame construction with powder coat finish
  • Made in the USA

Velcro™ Straps are Standard

  • Three 1″ wide heavy duty industrial Velcro™ straps can be added to any ball cover for securing the ball to the base
  • Allows for ball and base to be moved as one unit
Latex Free Ball

  • Burst-resistant
  • Industrial grade rubber compound
  • Adjustable firmness
  • 300 lbs capacity (Up to 3,000 lbs available)

Ball Cover

  • Zip-off, washable fabric
  • Durable laminated vinyl/nylon
  • Abrasion resistant
  • Anti-microbial fabric (standard on A-30, optional on other sizes)
  • Available in seven standard colors; solids or two-tone combinations
  • Double-sewn grab handle for easy portability
A-30 Small 30cm Pre K – K 34-44 inches $117.50
S/M-38 Small/Medium 38cm K– 2 34-45 inches $129.75
B-45 Medium 45cm 1 – 3+ 45-55 inches $138.00
C-55 Large 55cm 4 – 6+ 55-65 inches $147.00
D-65 XL 65cm 6+ – Adult 66 inches $165.00
DLY-S/M Optional Caster Dolly for Base Small/Medium Fits Small/Medium Seats $75.50
DLY-M Optional Caster Dolly for Base Medium Fits Medium Seats $78.00
DLY-L Optional Caster Dolly for Base Large Fits Large & XL Seats $84.00
DLY-XL Optional Caster Dolly for Base Extra Large Fits Extra Large Seats $97.25


Customization and Options

Ball Cover Colors

Ball covers are available in seven solid colors, two tone, custom design or custom graphics graphics.
Click the swatches for color name

Navy Ball Cover Color  Black Ball Cover Color  Burgundy Ball Cover Color  Medium Green Ball Cover Color  Gray Ball Cover Color  Red Ball Cover Color  Orange Ball Cover Color Gold Ball Cover Color  Two-Tone Ball Cover Color Custom Ball Cover Color Custom Ball Cover Color

Sample swatches available on request

Base Colors Available

Standard Base Colors:

Small – Tan powder-coat
Small/Medium – Tan powder-coat
Medium – Blue powder-coat
Large – Chrome-plated
XL – Black powder-coat
Caster Base – Red powder-coat

Custom colors are available. Minimum quantities apply.
Combination Colors Available

*Two-tone combinations are also available. Custom colors are available to match your school or institutional color or to coordinate with an interior design. Please contact us for a quote to your exact specifications.

Anti-Microbial covers are available in tan only.
Custom Graphics Available

Your school logo, mascot or other graphic can be screen printed or embroidered on the ball covers for an extra charge. Inquire when ordering.

Shipping and Handling Information
  • Balls are shipped deflated to reduce shipping cost, unless otherwise requested
  • Orders shipped UPS or best available
  • Shipping and handling charges will be calculated for each order and provided in advance
  • Tracking information will be provided at the time of shipment
  • Careful attention given to planning off-shore shipments

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