1.5mL 11mm Crimp Ring Vial ND11 for GC and HPLC Features 1) Vials have a 40% larger opening than standard opening aluminum seal vials 2) The standard 12x32mm profile is compatible with 11mm aluminum seal closures Product Show 1.5mL Crimp Neck Vial w/Write-on Spot, 11.6*32mm PTFE/Silicone Septa, 11mm Crimp-top Aluminum Cap, 5.5mm Centre Hole.