BD Ultra-Fine Mini Pen Needles 5mm x 31G, 100/box — Mountainside Medical Equipment
Amazon.com: Care Touch Pen Needles 31 Gauge, 5/16 inches, 8mm (Pack of 100) : Health & Household
Droplet Pen Needle 31g (0.25mm) X 8mm (100 Count)
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
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