Do you need portable and useful test tube solid plugs? , take a quick look at this item. Made of rubber materials, practical and excellent. Simple look design and craftsmanship ensure its popularity and practicality, excellent durability. Features -Color:White -Material:Rubber -Size:3.30X2.80X2.50cm/1.30X1.10X0.98in -Size:3.70X3.00X2.80cm/1.45X1.18X1.10in -Size:4.20X3.20X3.00cm/1.65X1.26X1.18in -Size:4.50X3.70X3.00cm/1.77X1.45X1.18in -Size:5.00X4.10X3.20cm/1.97X1.61X1.26in -Wide range of applications, test tube solid plugs are suitable for various uses such as laboratory test tubes, experiment test tubes. -Test tube plugs are crafted from rubber, ensuring durability, sturdy and useful, safe and excellent. -Multiple sizes available, test tube plugs are simple to use, cater to different requirements. -Excellent sealing performance, effectively prevents leakage of liquids, test tube rubber plugs are practical. -Reasonable design, simple structure, test tube stopper is easy to use, allowing for effortless installation and removal. Package list: 5 x laboratory test tube solid plugs