About Sensor Reflective Mystery Balls - 6 Mirror Balls
Stainless steel is an ideal sensory play material
- Does not contain toxins and chemicals
- Durable and light
- Hygienic - material without pores, naturally repels bacteria
Ball 1: Empty, makes no sound when shaken. Behaves normally when rolled and dropped.
Ball 2: Filled with 10 steel balls. Makes a rattling sound followed by a swirling sound. Rolls and bounces normally, but with a sound effect.
Ball 3: Filled with sand. A gentle sound is produced when shaken. Refuses to roll forward or backward. Spins in an eccentric arc and does not bounce
Ball 4: Filled with gravel. Makes a rattling sound, similar to ball 2, but without the swirl. Rolls normally make a scraping sound. Bounces normally.
Ball 5: A large steel ball inside. Shaking produces a knocking sound followed by a rolling sound. Ripo zig zag pattern. Bounces normally, but two bounces are heard as the ball moves inside the ball.
Ball 6: Eccentric weight inside. Shaking makes no sound. Rolls unpredictably.