luer lock/ luer slip hypodermic syringe
the different sizes of needles and types of syringes?
Subcutaneous injections call for a 1/2 to 5/8 inch needle. Intradermal injections require a needle length of 3/8 to 3/4 inch. The 1/2 and 5/8 inch needles are the two most common needle lengths and span both intradermal and subcutaneous injections.21