1).It looks bright day and night. 2).It is acrylic drink holder 1).It looks bright day and night. 2).It is a acrylic drink holderWe are a leading manufacturer specilizing in acrylic series,have passed the SGS ,ROHS,PET test.The acrylic series has high quality and competitive price.We can do as your size of your design, we can also silk print your logo on it.OEM is welcomed. acrylic drink holder