What you get: 40PCS Plastic test tubes with caps and test tube holder,The test tube caps comes in 4 different colors(White Blue Red & Orange) Size and Material:16x100mm,the capacity is 12ml made of High-quality materialclear sturdy and Test Tube:Not only for the scientific experiments,but also for the storing candy,beads,spices,liquids,seeds,put some colorful liquids to decorate the home,office in Halloween and Chirstmas day Test Tube Holder: The Rack has 3 Layer,2 slots and 40 Holes to store all the test tubes, three levels of partitions,removeable,keep tubes steady Test Tube Caps:The test tube caps has 4 diffenrent color to recognize and classify diffenrent things,colorful and useful Colour:As Shown Material:plastic Package Contents: 1 set * test tubes with caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.