Blue Rubber Head- Pipettes Measuring Dropper. Features: Pipettes Are Made of Borosilicate Glass, Thick and Durable. Graduation is Very Precise, Clear and Professional, the Calibration Marks Are Easily Readable. The Glass Pipettes Are Environmental Friendly and Non-toxicIt is Also Reusable After Clean Up, and Better Than Plastic Pipette. Large Reservoir of the Glass Dropper for Receiving and Dispensing Liquids. Apply for Testing Laboratories, Chemistry, Microbiology, Liquids, Scents and More. Specifications: Color: As Shown Material: Glass, Rubber Size:200mm,5/10ml Package Included: 1 * Scale Dropper . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.