These are five needles in a cartridge, arranged in one row, with a diameter of 0.40 mm, type CF (slope), with a PT degree and a sharpening method, i.e. Point Taper.
In CF cartridges, the needles are arranged in one row. The needles have different lengths and are arranged in descending order. Depending on how you hold the CF cartridge, you can achieve the effect of a compact and blurred shadow, as well as dots of varying intensity.
The PT cone needle has a double sharpening, which means that in addition to the usual sharpening, the tip of the needle itself is additionally sharpened at a different, more obtuse angle. This type of sharpening means that the PT needle is not as sharp as the LT needle, which allows you to insert it into the skin more accurately. PT - Cone tip (2.5 mm with double sharpening).