Plastic

BEST TEST TUBES FOR KIDS: Steve Spangler’s Baby Soda Bottle Test Tubes are the best test tubes for kids!
STURDY TEST TUBES FOR SCIENCE EXPERIMENTS: Steve Spangler’s Baby Soda Bottles are made of durable clear plastic which makes them perfect for classroom or professional use! The plastic is so thick since these bottles are used to make 2-liter bottles! That’s why we call them Baby Soda Bottles.
REUSABLE, DURABLE TEST TUBES: Unlike ordinary glass test tubes, Steve Spangler’s Baby Soda Bottles can be thrown in the dishwasher, dropped, or stepped on and they won’t break!