32g 4mm bd viva pen needles penta point32g 4mm BD Viva Pen Needles are compatible with all leading pen devices. All BD Viva pen needles are designed to improve comfort, and now you can prescribe the same BD quality and reliability you expect from all Viva needles Compatibility BD Viva pen needle is compatible with leading pen injection devices. Electro polished, surgical grade steel Manufactured with an electro polished, surgical grade needle designed for smoothness.* Micro bonded