The item have three modes:1.Steady On 2.fast flash 3.normal flash This item suitable for for outdoor sports, night running, large-scale festival party, concert, promotion, cheer, employee benefits, corporate events and so on. Colors: red,orange,yellow,blue,green,pink (Six kinds color for you chose) 100% brand new and high quality Size: 27CM-32CM (Length can be customized specifications)