BD Vacutainer Needles in 21G x 1.5 inch (0.8mm x 38mm) are latex-free, sterile hypodermic needles designed for multiple sample blood collection using the Vacutainer system. The 21-gauge size provides a balanced flow rate suitable for routine venepuncture in most adult patients. Each needle is individually sealed for sterility and single use. Supplied in a box of 100.