insulin pen needle Product Description YiLi-Medical Insulin Needle Diabetic Pen Needle Insulin Pen Needle Size 29G 30G 31G 32G 33G Features: 5 Bevels Painless Detail: Product name: High Quality Diabetic Insulin Pen Needle Size:29G,30G,31G,32G, 33G Needle Length: 4mm - 12mm Properties:...