SGE NanoVolume Syringes, Volume: 1 uL, Needle Gauge: 23 G, Model: 1BR-7, Needle Point Style: Removable Cone, Length Needle: 70 mm, 2.75 in., Accuracy: +/-2%, Connection Type: Removable, Diameter Outer: 0.315 in., 8 mm, Diameter Outer Needle: 0.0248 in., 0.63 mm, Length: 2.75 in., 70 mm