Specifications‎:‎Fashion design‎,‎ nice construction and durable‎.‎Creative whistle shape with steel balls‎.‎Great for anxiety‎,‎ focusing‎,‎ ADHD‎,‎ autism‎,‎ quitting bad habits and staying awake‎.‎Type‎:‎ Hand SpinnerMaterial‎:‎ Aluminium AlloyFunction‎:‎ RotatingFeatures‎:‎ Focus Toy‎,‎ Nice Construction‎,‎ Steel Ball‎,‎ Whistle ShapeSize‎:‎ 6.5cm x 0.8cm/2.56‎"‎ x 0.31‎"‎ ‎(‎Approx‎.‎‎)‎Notes‎:‎This product can not be washed with water‎!‎ After playing a long time‎,‎ soak it with alcohol‎,‎ for cleaning the bearing‎.‎Due to the light and screen setting difference‎,‎ the item's color may be slightly different from the pictures‎.‎Please allow slight dimension difference due to different manual measurement‎.‎