These are the TRUEplus syringes, 29G 0.3CC 1/2In. This syringe will hold up to 30 units. These are the longer style needle being that they are ½ inch long. For your comfort, these feature a silicone coated needle with a precision-cut, tri-beveled needle tip. Use once and discard of in an appropriate container for sharps. Please keep out of the reach of children.