SGE Gastight Syringes: Removable-Needle Models, Diameter Outer: 0.42 in., 10.8 mm, Needle Gauge: 23 G, Volume: 2.5 mL, Needle Point Style: Removable Bevel, Length Needle: 50 mm, 1.96 in., Accuracy: +/-1%, Connection Type: Removable, Diameter Outer Needle: 0.02 in., 0.63 mm