The plastic test tube with cork 20ml is made of high-quality plastic and the cork is made of natural cork, is light and durable, transparent, has a good seal and is leak-proof. You can put , almonds, spices, candies, dried flowers, and other small items into the test tubes with corks as special homemade gifts for family and friends on festivals such as weddings, birthdays, Christmas and party souvenirs Test tubes with corks are equipped with kraft and , and you can write names or words on the kraft or to distinguish different test tubes The plastic test tube with cork has a length of 150 mm, a diameter of 16 mm and a capacity of 20 ml. The test tube kit includes 30 plastic test tubes, 30 cork stoppers, 30 kraft , 1 bundle of 10m string, 2 small funnels and 1 test tube brush. Colour:Transparent Material:Plastic Size:150x16mm Package Contents: 30 * plastic test tubes 30 * cork stoppers 30 * kraft 1bundle * 10m string 2 * small funnels(The style of the funnel mouth is shipped randomly, and no designation is accepted) 1 * test tube brush 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.