The wood cork affords simple opening and closing.These test tubes were produced with the intention of easy manipulation within a laboratory setting. – Glass test tubes, round bottom with wood cork, they are easy to fill and the lids fit tightly, no leaks.
Item Tag: glass test tube
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10-100x 15*150mm Glass Test Tubes With Cork Stopper Candy Party Wedding Storage
10-100X Glass Test Tube Round Bottom with Cork Stopper Borosilicate Chemistry. – These test tubes are no bubbles, no impurities, high speeds centrifugation. 2 Pcs Car Mirror Squeegee Window Double-sided Glass Wiper Washer.