Insupen 31G 5mm Insupen pen needles: A comprehensive range for any need. Made in Italy Product Capacity: 100pcs Insupen 31G: the complete line that caters to all habits.When talking about injections, habits make a huge difference. Thanks to its broad range (5,6 and 8mm), Insupen 31G is the 31 gauge pen needle able to meet […]