48PK Test Tubes, 12mL, 16x100mm - Rimmed - Marking Spot - Light Wall, 1.2mm Thick - Borosilicate 3.3 Glass

• I12mL (0.4oz) Test Tubes made of high quality, heavy duty, Borosilicate 3.3 glass. Each tube features white, printed specifications and marking spot
• Uniform wall thickness of 1.2mm provides excellent thermal shock resistance
• Chip & crack resistant, fire polished beaded rims
• Microwavable and autoclavable, with superior chemical durability. Low temperature gradient - can withstand high temperatures & thermal shocks
• Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Great for organization and storage of spices & craft supplies

Set of 48 test tubes made of high quality borosilicate 3.3 glass. 12mL capacity. White printed specifications and marking spot. Tubes feature uniform, 1.2mm walls and beaded rims. Each tube measures 4" (100mm) tall, with an outer diameter of 0.6" (16mm). Inner diameter measures 14.8mm.