Bright fun turning pen -color turning pen high-value turning pen beginner student turning pen material: Color: As the picture shows, (due to the difference of different monitors, there may be slight color difference in the picture. Please make sure you don't mind before placing an , thank you!) Package weight: 25g Package size: 23x3x3cm, (Please allow 1-3mm error due to manual measurement. Please make sure you don't mind before ordering.) This Spinning Pen Is Suitable For Both Children And Adults; You Can Use This Pen To Train Your Hands, Eyes And Grain, Thus Improving Your Concentration, Memory And Learning Ability; It Can Also Help You Work And Life Stress You Can Give These Gaming Finger Pens As Gifts To Friends, Relatives, Colleagues, Classmates On Thanksgiving, Christmas, New Year, Birthday And Other Festivals To Express Your Love And Care. It Can Exercise Fine Motor Skills, Hand-eye Coordination, Quick Reaction Ability, Logical Thinking Ability, And Can Well Promote The Flexibility And Muscles Of Fingers. How To Use: Hold It With One Hand, Then Use Your Fingertips To Give It A Quick Spin. In Practice, Turning And Stopping Can Be Done With One Hand And One Hand. To Rotate The Fingertip Toy, Simply Center The Sides With One Finger And Rotate With The Other Hand. With Practice, The Fingertip Toy Can Be Used With One Hand.