Show off your latest science experiments with this collapsible 2-liter soda bottle test tube rack! The colorful rack has 6 slots, big enough to hold 6 Plastic 2-liter Soda Bottles test tubes - while you wait for results, plan the next step, or write down your findings. Perfect for a Science Discovery Center. Recommended for children ages 3 and up.Add in some of the sturdiest soda bottle test tubes ever. Large Plastic 2-liter Soda Bottles test tubes are leak-proof. Large Plastic Soda Bottles test tubes feature caps that easily twist on and off, making the soda bottles tubes shakable and unbreakable, even with liquids inside!These come from a bottling industry. At the bottling plant, the blanks or preforms (tubes) are placed into a vacuum mold and heated so they soften. Hot air is then blown into the tube, stretching the warmed plastic to 40 times its original size to become a 2-liter soda bottle. When the plastic cools into the shape of the mold, the bottle is ready to fill with your favorite refreshing drink.

• Racks for the the #1 best 2-liter soda bottle test tubes for kids!
  
• Each plastic rack holds 6 Plastic Soda Bottles
  
• Used for safe science experiments in classrooms everywhere
  
• Rack Only