1-mL BD Luer-Lok™ insulin syringe available with either a detachable needle or a permanently attached needle—support many clinical uses and crucially prevent needle disengagement, medication leakage, and spray or tubing disconnect. We also offer a 1-mL insulin syringe with the BD Luer-Lok tip or the U-100 slip tip. hey also feature a barrel with clear scale numbers and wider unit spacing that are designed to enable users to more easily draw up an accurate dose. Additionally, the larger flange is designed to allow users to more firmly hold the insulin syringe while drawing insulin.