3PCS 18 mm by 14 mm Transparent Glass Tube Adapter Clear Scientific Tube Adapter for Science and Lab Experiments (5.2 Inch)
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High quality borosilicate glass, hand-made.
Size: 18MM x 14MM. Length: 5.2 INCH.
Multifunction great accessory for your lab or life.
Please check the image size carefully before purchasing.
Promise: Feel free to contact us if you receive the broken glass, we will resend or refund.
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