Blood collection tube needle holders (Vacutainer needle holders) are made of unbreakable polypropylene (PP) and are designed and priced to be disposable. These single-use vacuum blood collection tube holders complete the blood collection assembly when combined with appropriate needles and evacuated blood collection tubes. They may be used only once and then are to be discarded with the needle attached. This eliminates the hazards associated with reusable needle holders. These needle holder fit both 13mm and 16mm blood collection tubes and all common needle units.