This 3D-printed balance board combines physical training with a fun mental challenge. A half-sphere on the bottom provides instability, while the top features a track for a rolling ball. Use it in a plank position and guide the ball from start to finish using your body control. It’s an intense core workout that also activates shoulders, arms, and coordination. You can also stand on it to level up the difficulty and improve balance and lower body strength. Perfect for functional training, physical therapy, or gamified home workouts. Designed for those who love to move, play, and challenge their limits. Requires one ball (e.g. marble or steel ball) to play the game. Lightweight, portable, and fully printable – just add a ball and you're ready to go.