The KombiColor AI Syringe is 4cm longer than conventional AI syringes. Only two parts, this Universal AI syringe can be used for 0.25ml and 0.5ml straws. Uses the blue insert un-split sheath, which is easily secured to the gun by just sliding the un-split sheath over the locking device (no O-rings or screw-style locking device). We stock this syringe in two colors (white and blue). Made of stainless steel, built to last, easy to use, longer length, larger hub-ring fits your fingers better and two colors to select from.