• Made from ASTM E-438 Type-1 Class A, Baro 3.3 glass
  • With Screw Thread and Teflon Liner
  • Comes with PP Screw Cap & Leakproof

Boro 3.3 or Borosilicate 3.3 is a type of glass having very low coefficient of thermal expansion White Printing Chemical Resistant Screw Cap leak proof