These Monoject™ 12cc Luerlock Syringes include a sterile 18 x 1 needle. Luer Lock (LL) means the needle twists on and off for a more secure fit. Premium quality disposable syringes include sterile, single-use Monoject needles, each covered with a rigid polypropylene sheath featuring a tamper-evident heat stake cap to guarantee sterility. Latex-free, non-toxic, non-pyrogenic, autoclavable,