Cup holder Outter diameter is 0.51 / 1.3 cm , and the finger round Outter diameter is 0.7 / 1.7cm . Color:White Material: plastic. 100% Brand New Great for use during the eyelash extension and tattoo application. Quick and easy, no mess to clean up. Package include: 100pcs Glue Holder Ring Warm Tip: Dear buyer, Due to lighting effect,monitors brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you!