2.0 ml, 12 x 32 Amber Type 1 Borosilicate glass, Large Opening Screw Thread Vials feature a 40 % larger opening and is designed to work in robotic arm samplers such as Hewlett-Packard. These vials function similarly to the Kimble ROBO vial™, Nationals Target DP, Sun 1 and Wheaton ABC vials. 9mm screw thread closures and septa are accommodated on this vial. Available with graduated marking spots which can be written on with a # 2 pencil.