The Monoject Ultra Comfort U-100 Insulin Syringes box comes with 29 Gauge 1/2cc 1/2inch (12.7 mm) needle. There are 100 single use syringes in this set. For 50 units or less. You should consult with your health care professional before using this product to ensure that this is the proper needle and syringe set for your diabetic need. Monoject Ultra Comfort pride themselves on engineering their insulin syringes to be of the utmost comfort, reliability and ease. Savings of over 65%! You should always shop with us first.