Sturdy and thick walled plastic test tube with cap is made from soda bottle material, ensures a durable test tube with a tightly screwed cap, to maximize lab use and minimize leaks. Total length is 126mm, inner diameter is 22mm, and outer diameter is 24mm.
The Acid rain test kit is great to use in the classroom or for science fairprojects to determine if you have acid rain in your area, Kit Includes: 15ml Low Range pH Indicator, 6 Test tubes, Color Chart