This premium quality universal fit pen needle is Swiss Made and manufactured with premium quality features to provide reliable comfort. A high precision, 3-bevel premium polished pen tip, an extra thin cannula wall, and a special silicone surface treatment enable constant gliding characteristics and smooth penetration to minimize discomfort during injections. Penfine needles are compatible with all major injection pen brands and available in 4mm, 5mm, and 6mm lengths.