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