Do you have difficulty reading your insulin syringe or inserting the needle into the vial? The BD syringe magnifier will make drawing insulin into the syringe easy by aligning the syringe and insulin bottle firmly. The Magni-Guide will also magnify the calibrations 1.7 times the full length of the syringe for easy scale reading. Perfect for those with impaired vision or limited mobility. Fits most syringes, slips easily over the vial.