Becton-Dickinson - Needle Cartridge - 29gx1/2, 100 Units / 1 unit

29 G x 12.7 mm BDT Ultra FineT original insulin pen needle (100/sp, 1200/ca) Often the size and shape of a large marker, insulin pens carry insulin in a self-contained cartridge. They're easy to use and growing in popularity.Some users use insulin pens for all their injections, while others carry them when they're 'on the go' and rely on less-expensive and more versatile syringes when they are:mixing different insulins taking an insulin that isn't available in a pen at home Insulin pens are used with pen needles that are sold separately. A new pen needle should be used each time you inject. The reasons why some insulin users prefer insulin pens include: Insulin pens are portable, discreet, and convenient for injections away from home. They save time because there's no need to draw up insulin from a bottle - it's already pre-filled in the self-contained cartridge. They usually let you set an accurate dose by the simple turn of a dosage dial, and that may make it easier to set an accurate dose for people who have vision or dexterity problems.