1) correct your sitting posture 2) silver/red/black frame for you choosing 3) correct the sitting position Matierals:PC+LEDlights+other electronics partsSize of sunglasses:width 14.5cm.hight.4.0CM ,Lehgth of leg14cmIt could help the children adjust the setting posture ,it will sound when you move towards.It could light up after you open then lens as left pic when you reading.They are great for parties,concerts and everyday entertainment.Each pair comes with built-in LED lights with a control ON/OFF switch.Our Light-up Sunglasses are available in variety of styles.Batteries included and installed.
light up sunglasses
