Calibration glass dropper, glass pipette dropper, straight calibration glass medicine dropper, glass medicine dropper, essential oil pipette, graduated pipette with rubber suction bulb (Blue)

• 1. Good liquid transfer tool dropper, ideal for collecting and dispensing liquids 2 10ml glass graduated pipettes + 2 large rubber caps + 1 cleaning brush
• 2. The scale of the glass dropper is very accurate, clear and professional, the calibration mark is easy to read, the pipette is -20 cm long, the rubber cap is 5.5 cm long, 3.5 cm wide, and the tip hole diameter is 1 mm
• 3. The rubber tip of the glass pipette is detachable and can be washed away with water. It is made of high-quality rubber, non-toxic and tasteless, and has strong suction power.
• 4. Glass dropper: made of corrosion-resistant lead-free glass. The glass wall is printed in a clear and accurate proportion, which is convenient for you to measure liquid.
• 5. Uses: The product can be used in chemical experiments, school teaching, DIY handmade soap. The graduated glass dropper is made of borosilicate glass, thick and durable, can be used multiple times, better than plastic dropper.

Technical Index Full length (with blue rubber bulb): 24.5CM Pipette length: 20CM Outer diameter: 1.3CM Capacity: 10mL Minimum scale: 0.2mL Material: glass Tips for use It should be washed with chromic acid to remove oil from the inner wall. Then, the remaining washing liquid was washed with water and again with distilled water. After cleaning, there should be no water droplets on the pipette wall. Before removing the liquor, the inner and outer surfaces of the pipette tip should be dried with filter paper, and then the wall of the tube should be rinsed with liquor for 2 to 3 times to ensure the same concentration of liquor. Description The pipette is made of borosilicate glass and is durable. The scale is very precise, clear and professional, and the calibration marks are easy to read. Glass pipettes are environmentally friendly and non-toxic, and can be reused after cleaning, which is better than plastic pipettes. Large container with glass dropper for receiving and dispensing liquid. Apply for testing laboratories, chemistry, microbiology, liquids, odors, etc. The package includes: 2 x 10mL glass graduated pipette 1 x cleaning brush