SGE Gastight Syringes: Removable-Needle Models, Diameter Outer: 0.34 in., 8.8 mm, Needle Gauge: 23 G, Volume: 1.0 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