Onnit Si Board

The ultimate balance training tool.

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Product Code: Onnit Si Board

Onnit Si Board


Onnit Si Board

Onnit Si Board

  • The Ultimate balance training tool
  • Unique Multi-directional design
  • Helps with injury prevention

The Onnit Si Board is the most versatile balance training system available. The Si board is a multi-direction balance training tool that uniquely transfers weight from foot to foot for an absolutely free rotation and the ability to move in all directions. The heart of the balance training system is a solid urethane ball which helps with core control and functional movement that simulate the dynamic training that you need for sport. Engage more muscles as you try to stay upright. In addition to hard core balance training, using the system can help with injury prevention and overall body awareness.

The Onnit Si Board comes with a free mobile app for iTunes and Google Play with instructional videos and pictures of exercises to help you get the most out of the training system.

The Si Board Ball doubles as an unbreakable medicine ball; get two products in one!


Board Specifications

  • 36″ x 18″ x 1/2″ (91.4 x 45.7 x 1.27 cm)
  • 9 layer high-grade Baltic Birch plywood
  • Concave ride surface and elliptical shape
  • All boards have a 1/2″ continuous rocker
  • 6 solid urethane blocks secure the rail to the board
  • Grip coat on the entire board surface
  • 28″ x 14″ x 1” (71 x 35.5 x 2.5 cm)
  • Thick one piece steel rail
  • Durable powder coat
  • Sits 2″ off the board base
  • 12 lbs (5.45 kg)
  • Weight limit: 400 lbs (181 kg)

Onnit Si Board

Ball Specifications

  • 6.5″ (16.51 cm) diameter
  • 20.41″ (51.84 cm) circumference
  • 5.5 lbs (2.5 kg)
  • Large hands can easily grip
  • Great ball for two handed throws
  • Solid urethane without air, gel or sand filling to break open
  • Exceptional resistance to friction, oils, solvents, UV, extreme temperatures and is odor free
  • Higher strength and durability compared to rubber, plastic, or vinyl
  • Made as one complete unit and avoids seams
  • Balls are perfectly round
  • Will not break open or wear with repetitive slamming
  • Slight tacky feel with grip bumps for texture
  • Easily grips the board and ground surfaces for safety
  • Will not slip on carpet or tile floors compared to wood or plastic rollers

Onnit Si Board
Onnit Si Board

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Onnit Si Board Video Gallery

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