Pro-Shot 50 cc Pistol-Grip syringe was engineered for the cost-conscious producer who doesn't want to sacriflca accuracy for prlce.Pro-shot 50 cc is ruggedly built from high-impact plastlc to be both durable and extremely lightwelght.its transparent,graduated barrel is made of nonporous polypropylene,which will not discolor.Lts simple dosge sleeve can be easily adjusted from 1 to 5 cc's.This syringe has a non-adjustable nylon plunger assembly and a luer lock hub.The extremely accurate Pro-Shot 5 cc Pistol-Grip Syringe combines the outstaning features of time tested pistol-grip syringes.yet is economicaly priced