ULTRA-THIN II STANDARD INSULIN 0.5 ML SYRINGE WITH NEEDLE, 31 GAUGE, 5/16 INCH, SOLD AS 500/CASE MHC 742Ultra Thin Ii Standard Insulin 0. 5 Ml Syringe With Needle, 31 Gauge, 5 16 Inch, Sold As 500 Case Mhc 742 Aimsco'S Standard Insulin Syringe With Needle Has A 31 Gauge And Is 5 16 Inch Long. Easy To Read, Large, Bold Numbers With A Plunger Tip That Aligns Perfectly With Scale Markings Guarantee Precise Dosing Every Time. Syringe Has A Volume Of 0. 5 Ml. Ultra Thin Wall Fixed Needle Tip Syringe, Insulin 0. 5Cc 31G X 5 16" (100 Bx 5Bx Cs) Standard