SGE Series II Standard Fixed Needle Syringes, Volume: 25 uL, Needle Gauge: 25 G, Includes: Standard plunger, Length Needle: 50 mm, 1.96 in., Accuracy: +/-1%, Connection Type: Fixed, Diameter Outer: 0.31 in., 8 mm, Diameter Outer Needle: 0.01 in., 0.5 mm, Graduations: Major - 2.5 uL, Minor - 0.5 uL