Product name : Glass Test Tube Item : CL-TT0003 Detail : CL-TT0003 Test Tube Type : with rim or without rim Material : Netural glass , Boro 3.3 glass or Boro 4.0 glass. Size : 10x75mm ,12x75mm,12x100mm,13x100mm ,15x100mm,15x150mm,16x100mm,16x125mm,16x150mm,16x155mm, 16x160mm, 18x150mm,25x200mm, 30x200mm etc .