Adequate to Meet Your Needs: you receive 100 pieces of plastic vials in total; The quantity is sufficient to apply and replace, and can easily meet your daily use and other requirements Serviceable and Lasting: each plastic tube is made of quality plastic, reliable and sustained, not easy to deform or break, and can be for a long time; The of the tube is smooth and comfortable to touch, you can use it with ease and confidence Proper Dimension to Apply: the size of these test tubes with lids is about 0.63 inches/ 16 mm in tube mouth diameter, 5.91 inches/ 150 mm in height without lids, 6.3 inches/ 160 mm in total height, 0.84 oz/ 25 ml in capacity, appropriate and convenient to use, without taking up too much space Good Sealing to Operate: equipped with fitting lids, these candy tubes keep a good seal without leaking or scattering, you can put candies, liquid, beads, flavorings and so on, bringing you a pleasant and easy using experience Extensively Applicable Occasions: the plastic test tube is suitable for diverse kinds of occasions, including but not limited to science experiments, plant propagation, science themed parties, carnivals, classroom laboratories and others Our test tubes for kids are perfect to send to your family members, colleagues and more. They feel your concern and love, and your relationship be improved. These test tubes for kids are available in transparent color, you can easily and conveniently observe items on them, without open the lids, saving time and effort. Colour:transparent Material:plastic Package Contents: 100 x Clear test tubes 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.