Usage Tips:[Easy to use and clean] Transparent glass dropper allows you to easily read numbers and distinguish liquid. Use the accompanying cleaning brush, and the cleaning work is easy. The brush design is used to touch every corner of the glass migration tube to thorough cleaning and maintaining .[Safe dishwasher] Drop tubes can be cleaned in the dishwasher, and the scale will not disappear. Glass dropper can save your time and allow you to enjoy life better.[Easy to distinguish] include 5 black and 5 white demolition to facilitate distribution of liquid.[Multifunctional dropper] Whether you are a scientist, an artist or a DIY enthusiast, these dropper are important tools for accurately measure and distribute liquid in the project. From mixed essential oils and spices to adding accurate amounts of edible pigment or liquid sweetener in cooking creativity, our glass dropper is your preferred solution.[What you get] The durability, versatility and easy cleaning of the glass dropper an essential tool for anyone or a enthusiast. We are confident in the quality of these glass dropper.Note:Due to different production batches, the colors in some places are random and cannot be specified.Colour:TransparentMaterial:GlassPackage Contents:10 * droppers1 * brushOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.