Intradermal injections of vaccines and other drugs require a bit of precision – it takes a steady hand while performing the Mantoux technique, so as to not penetrate the skin completely and turn the injection into a transdermal one. 
West Pharmaceutical Services (Exton, PA) is now releasing its ID Adapter, an FDA approved device, that helps reduce the inconsistencies associated with intradermal injections and improve the reliability of delivering drugs as needed.
The ID Adapter works with standard 1 mL allergy syringes and helps clinicians by guiding the needle at a proper angle while limiting how far it can extend outside the syringe, preventing excessive penetration.
Features from the product page:
• Consists of a sterile, disposable, single-use injection molded part
• Snaps on to a 1 mL staked needle disposable allergy syringe with needles ½-inch long (27, 28, 29 gauge)
• Guides the angle and limits the depth of needle penetration into the intradermal layer
• Uses current drug/vaccine vials and commercially available syringes, minimizing disruptions to current clinical practice
Product page: ID adapter…
West Announces the Commercial Introduction of a Novel Intradermal Adapter for Disposable Syringes