100PK Test Tubes, 7mL, 12x100mm - Rimmed - Marking Spot - Light Wall, 1mm Thick - Borosilicate 3.3 Glass

INDUSTRIAL QUALITY || 7ml (0.2oz) Test Tubes made of high quality, heavy duty, Borosilicate 3.3 glass. Each tube features white, printed specifications THIN WALL || Uniform wall thickness of 1mm provides excellent thermal shock resistance BEADED RIM || Chip & crack resistant, fire polished beaded rims THERMAL SHOCK RESISTANT || Autoclavable for easy sterilization. Low temperature gradient- can withstand direct flame, high temperatures & thermal shocks GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || 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 100 test tubes made of high quality Borosilicate 3.3 Glass. 7ml capacity. White printed specifications. Tubes feature uniform, 1mm walls and beaded rims.Each tube measures 4" (100mm) tall, with an outer diameter of 0.5" (12mm). Inner