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picks up the subtlest sounds in any environment
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Borosilicate Glass Rimmed Test Tubes - 24x150mm x 50pcs TN3360-PRI picks up the subtlest soundsSet of test tubes made of high quality Borosilicate 3. 3 Glass, 50ml capacity. Tubes feature uniform, 1. 2mm walls and beaded rims. Each tube measures 5. 9" (150mm) tall, with an outer diameter of 0. 95" (24mm). Inner diameter measures 22. 8mm. Accommodates stoppers with a bottom diameter of 20 21mm & top diameter of 24 26mm. Autoclavable, with superior chemical durability. Low temperature gradient can withstand direct flame, high temperatures &