[GOOD SEALING]: Each test tube comes with a fitting push cap to prevents liquid from leaking, sealed performance is good. [TRANSPARANT]: Clear test tubes can see and identify the internal contents clearly. You can make DIY design by yourself, and it's great for as a gift for your kids and friends. [MULTIPLE USE]: These plastic test tubes great for storing sweet, cookies, nuts, candy, handmade crafts, samples, liquids and small items. Especially applicable during storage, decoration, gift, and more. Specification: Colour:Transparent color + white Material:PS Capacity: 3ml Size:12x75mm Package Contents: 100 x Plastic Test Tube With Cap Only the above package content, other products are not included. Note: Light 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.