High-quality materials: pipette made of lead-free glass with corrosion resistance. It is very firm and durable. The silicone cap and the cleaning brush are made of high-quality materials. They have a very good water absorption and cleaning performance. Very fully elastic and sensitive. Easy to clean: If you want to clean the dropper drip pipette, you can remove the removable pipette ball, and then wash with our cleaning brush. In water and let the pipettes dry in the air. Wide range of applications: glass pipette was used not only in laboratories, chemistry, microbiology, but also in perfumes, handmade soap DIY, other liquids etc. Perfect for accurate transfer and dosing of liquids. Clear scale: the glass wall is printed with a clear and precise scale with which you can easily measure the liquid. If you perform chemical experiments in the laboratory, this transfer pipette meets your precision requirements. Packaging: 1 set contains 2 x 10 ml dropper with silicone caps and 1 x cleaning brush. Features: - Products can be used in a variable area, such as chemical experiments, school lessons, handmade soap DIY. - Glass drops are reusable after cleaning, which is better than plastic droppers. - The pipette is made of corrosion-resistant lead-free glass. The clear and professional calibration markings are easy to read. Product details: total length (with blue rubber bulb): 24.5 cm Pipette length: 20 cm. Outer diameter: 1.3 cm. Capacity: 10ml Minimum scale: 0.2ml Package includes: 2pcs x 10ml Glass Pipette with Graduation + 1pc x Cleaning Brush Note: 1. Due to manual measurement, the size may be 1-3 mm error. 2. If there is a problem, it will be provided by customer service within 24 hours for you