BD Ultra Fine Insulin Pen Needles by Becton Dickinson & Co.
BD Ultra-Fine III Short Insulin Pen Needle, 31 G x 8 mm | TotalDiabetesSupply.com
BD Nano 2nd Gen Pen Needles | Walgreens
BD Pen Needle Short 31 Gauge 5/16 inch 100/box (320109) - drugsupplystore.com
Amazon.com: SIMPLI Insulin Pen Needles for at-Home Insulin Injections, Compatible with Most Diabetes Pens and Injection Devices, Size: Micro 4mm (5/32”) x 32G, 90 Count : Health & Household