- The SpeedStacks Pro Timer Bundle G4 is the updated version of the G3 bundle.
- It features the new StackMat Pro Timer Gen4 with the compatible G3 Mat that is still used in official competition settings, as well as the SpeedStacks Gear bag -- all at one great price!
- Pro Speed Cubing Mat.
- G4 Pro Timer - the only timer endorsed by the World Cubing Association.
- Accuracy to 0.001 seconds.
- This Timer/Mat is used for cubing not for sport stacking.
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