Heavy Wall Borosilicate Glass Test Tube with Beaded Rim, 100-Pack

This Eisco Labs pack of 100 heavy-wall test tubes each have a 5mL capacity and feature beaded rims. Made from borosilicate 3.3 glass, the heavy-wall construction provides durability ideal for centrifugation, boiling, and open-flame reactions. The thick walls resist thermal shock and mechanical stress. Autoclavable and chemically resistant. Suitable for demanding laboratory applications and classroom use.