Order early for pre-holiday delivery. Flinn (or Educational Innovations) will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025, will ship after we return.
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The perfect tubes and rack for your classroom or student activity! Thick-walled durable PET mini soda bottle preform tubes are a great substitute for your breakable glass test tubes. Can be used for a variety of chemistry demonstrations, biology activities, and much more. Comes with 5 mini soda bottle tubes and caps and a unique demonstration rack. Each tube has a 40-mL capacity, and measure approximately 16 cm long and 2.5 cm wide. Not autoclavable or for use with strong acids, bases or organics.