Mosquito brand professional catheter piercing needles. Box of 50. Made in Germany by piercers for piercers. Each individually sealed and sterile. Catheter needles have an exterior cannula that remains in the piercing when the needle is removed. This process has been proven to be the safest for the client and piercer. Never worry again about losing connection. Some refer to this as the European method. Needles are color-coded to make it even easier to know what size is which. Sterilization by EO Gas.