Are you still looking for teaching equipments for your students to do some experiments? Then our testing tubes are one of the best options for you. Good material, drop-proof, leak-proof, safe and . The perfect helper for chemistry teaching aids. Portable and compact, easy to store and carry. Features -Color:Multi -Material: -Size:16.50X2.00X2.00cm/6.48X0.79X0.79in -Capacity: 30ml -Cap external diameter:20mm - Encourage your child to , spark interest and improve academic performance. - Not only can be used for chemical experiments, but also can be used to store liquids. - Widely used in home, laboratories, tourism, school, universities, training institutions, research institutes, etc. - Perfect for storing , candy, liquids or other items, the material is drop resistant. - The stopper is easy to seal and tighten, with good leak-proof performance and easy to carry. Package list: 10 10 x lids