32011L-1232 Chromatography Vials, Big Mouth 11mm Crimp Top Vials, Clear Borosilicate Glass, 2ml, 12x32mm, 1000/CS; 5140-11 Aluminum Seals with Septa, 11mm Crimp, with Clear PTFE/Red Rubber, Silver Seal, 1000/CS . 40% larger opening prevents broken needles due to increased target area.