20pcs- 20ml Clear Glass Test Tubes 22 * 90mm Flat Bottom with Cork Stoppers Heat Resistant Laboratory Chemistry Lab

Material : GlassColor: ClearInclude: 20 Glass Test Tubes with CorkPack of 20: Glass Test Tubes 20mlGlass Lab Tubes : for professional laboratory

• Package Contains: 20pcs 20ml Glass Flat Lab Tubes (large capacity 22*90mm)
• Premium Performance：Lab tubes are made from stable materials,such as Borosilicate glass,which are selected for chemical and thermal expansion resistance,transparency
• large-capacity,clear test tubes can be used not only for scientific experiments,planting hydroponic plants,but also for party decorations such as Halloween,Christmas,weddings,and science theme parties
• Sealing and special design: Each tube is equipped with Cork Stoppers to enable a good seal; with the flat-bottomed tube design,the product can be placed on any flat
• If you need assistance with any matter, simply contact our customer service team.We strive to respond to your inquiries within 24 hours