Specifications:Just put the cup on, it will light up automatically.Made of high quality ABS plastic material, durable to use.Environmental protection material, non-toxic, safe to use.Unique 3-segment flash function, stylish decoration for transparent bottle and cup.Item Name: Cup Sticker MatMaterial: PCB Board + LED Light + Sticker + EVA FoamQuantity: 1/2/5/10PcsLight Flash Mode: Quick Flash, Slow Flash, Constant LightFeatures:Colorful, LED Light, Easy to Use, Cup/Bottle DecorThickness: 0.3cm/1.12 (Approx.)Diameter: 6cm/2.36 (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes: 1/2/5/10 x Cup Sticker Mat (Other Accessories Not Include)