FASHION traction flash Pet LED dog collar 1.LED dog collar 2.waterproof led dog collar 3.retractable dog collar 4.OEM FASHION traction flash Pet LED dog collar Features:1.It is comfortable to wear and you won't worry about it will hurt your beloved dog2.Adjustable pet collar, easy and convenient to use3.Highly reflective with sequential LED lighting4.Flash modes:manual control(fast/slow, ...