Pipettes features: Are you looking for professional and reasonably priced silicone dropper caps? Are you looking for a sturdy, trustworthy tool that can do multiple tasks at the same time? If so, please look no further Our professional dropper silicone must meet your needs. It is one of your best choices. Features Material: Silicone Made of long-lasting silicone material, it is durable and can be used for a long time Replace the worn or missing dropper tip with a new dropper tip Suitable for 2ml dropper, with strong sealing performance, not easy to leak, and can serve you for a long time Suitable for laboratory instruments such as graduated tubes, droppers, pipettes, etc Note: Keep away from acids, alkalis, oils, organic solvents and other substances, and at least 1.5 meters away from heat sources.