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Russka: Halfball Plus

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Halfball Plus

The green or black Halfball Plus Air cushion As an alternative to the exercise ball promotes active sitting, adapts optimally to the body shape, has a 40 cm seat and is supplied including a hand pump to regulate the height. Combine soft and relaxed sitting with dynamism and balance with the halfball.

Healthy back through optimized ball shape.
The shape of the ball ensures a straight sitting posture thanks to the better adaptation to your body shape

  • Active sitting
  • More mobile, sportier sitting
  • Swing and trampoline effect


  • 40 cm Ø, 16 cm high
Maximum resilience
  • 120kg


  • PVC

Work towards tension.

  • Comfortable seat pad
  • Larger seat (Ø 40cm)
  • Height regulation as needed
  • Sitting soft and relaxed

You can change the amount of air according to your individual needs. With a high amount of air, the half-ball in the ground area bulges and the trampoline effect (vertical vibration effect) increases. With a small amount of air, a clear seat is created, the half-ball becomes flatter and the rocking effect increases. To reduce the amount of air, you remove the needle from the side of the handle of the pump, insert it (without a pump) into the valve and then press on the half-ball. If there is an unpleasant ball under the buttocks, you should sit on the ball further forward or change the amount of air. With a small amount of air, you can also sit on the flat side of the half-ball. To optimize the sitting posture, you should sit more in the front area of the half-ball.
A ball arch about the width of the hand then arises behind the buttocks. Most people sit too deep. The optimal, open seat angle is 110 ° to 120 ° between the trunk and thigh. By regulating the amount of air, the seat height on the half-ball can be optimized accordingly. The half-ball is a seat alternative for back training in between. You can increase your seat duration with improved training condition.


  • Green
  • Black

Care advice

  • Wipe with a damp cloth.

Scope of delivery

  • 1 Half Ball
  • 1 mini pump
  • Exercise Instructions
Delivery note: Delivery in 2-3 working days within Germany.

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Opening hours

Mo.-Fri. : 9:00 a.m. to 6:30 p.m.

Sa. : 9:00 a.m. to 2:00 p.m.

Size chart shoes ladies

EU size
US Size XS
Sizes UK XS
EU size36 36.5 37 37.5 38 39 39.5 40 40.5 41 41.5 42
US Size5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11
Sizes UK3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9

* The sizes can be read from the EU size.

Size chart shoes men

EU size
US Size XS
Sizes UK XS
EU size39 39.5 40 40.5 41 41.5 42 43 44 45 45.5 46 46.5 47
US Size6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13
Sizes UK6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5

* The sizes can be read from the EU size.