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NovoFine Plus 32G 4 mm is the shortest and thinnest needle available—it's as thin as 2 human hairs and is designed for less pain.
How does NovoFine® Plus differ from other pen needles? NovoFine Plus has an ergonomic grip incorporating built-in extended flanges and a flat needle base for improved skin contact when injecting.
Is a 4 mm needle long enough to effectively deliver insulin? Skin thickness (epidermis and dermis) usually ranges between 1.9 mm to 2.4 mm at injection sites, so a 4 mm needle can deliver insulin effectively.