<p>INNÔPLUS Unique Design Fidget Spinners, Best Gift for Your Families and Friends</p> <p>Item Weight：4.5  ounces with package</p> <p>Rotation time is greater than 4 minutes, Silent bearing, sound less than 15 decibels</p> <p>Stress-Relieving Toy, Figets spinners need absorb 30 seconds and 60 seconds of light under the light conditions (sunlight, mobile phone rear light, etc.), then Release light in the dark</p>