Measuring 0.7 x 7.1 inches, this wooden stopper glass test tube serves as sturdy supplies for laboratory use and classroom teaching. It works well in various strict experimental scenarios in schools and research labs. Made of premium raw materials with fine craftsmanship, it boasts stable and dependable quality. Custom white and blue logo printing is supported, ideal for promotional customization as well as regular teaching and lab experiments. Fast delivery and full quality assurance are offered.