This 50-pack of pre-made, pre-sterilized tattoo needles by ACE Needles are precision manufactured to exacting standards; they are truly superb and some of the finest available. Crafted from the highest-quality surgical stainless steel, they have standard-length loop bars to fit all machines and tubes. They are also individually blister packed and pre-sterilized with ethylene oxide gas (proven by the color changing dot that is blue in the presence of EO gas). All packages are marked with lot #, size, sterilization and expiry dates (expiration dates are normally 2-3 years out from date of purchase as stock is refreshed monthly). Manufactured to CE, ISO-9002 and EN specifications. Bar length: 4.75". Needle tip length: 1.2". Bar diameter: 0.061". Includes: 50 needles. (Pictures shown are actual photographs of our needles, but may be of a different size than what you are purchasing.)