$ 11.96 Category: Accu-Fine Pen Needle 31G x 5mm (100 count) – ultra-thin, sterile needles designed for smooth, comfortable, and accurate insulin delivery. Related products US Diagnostics Insulin Pen Needles 100 count 31g 1/4″ 6mm$ 10.79Select options This product has multiple variants. The options may be chosen on the product page UniFine PenTips Plus Insulin Pen Needles 100 count 31g 8mm w/ Built-in Remover$ 17.09Select options This product has multiple variants. The options may be chosen on the product page UniFine PenTips Insulin Pen Needles 100 count 31g 6mm$ 15.29Select options This product has multiple variants. The options may be chosen on the product page