Features: 1. The diameter of the glue retaining ring is adjustable, it fits your fingers perfectly, it is very convenient to use, and you don't have to worry about the overflow of ink or glue. 2. Pigments, inks, fixatives, makeup removers and lash primers during lash extensions and tattoo applications. Great product for makeup, manicures, tattoos and more. 3.Simply place the tattoo ring cup on your handy hand, drop a drop into the well, and continue with your lash extensions, tattoos, and more. 4. Made of sturdy and durable plastic, no odor. If you are very sensitive to it, wipe with some alcohol (not included) before use. 5. Clear ink cups for professional tattoo artists exercises or home use and perfect for being used to hold pigment or ink for tattoo. Specification: 100% brand new quality. Item Name:Disposable Ink Rings Material:plastic Color:As the picture shows Size:As the picture show(1inch = 2.54cm) Package includes: 50 Pcs Disposable Ink Rings Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.