C-Type Copper Acupuncture needles 0.25x40mm 5 in guide tubeHandle Type: Copper Chinese: 32 Gauge (mm): 0. 25 Length (mm): 40 Format: 5 in 1 guide tube Package: 500 needles Copper Handle 5in1 Guide Tube, 0. 25x40mm (C Type) Boxes come in either 100 or 500 needles. The spiral copper needle makes it perfectly suited for electro stimulation and moxibustion. The needles have thicker handles than other brands which makes the needles easier to manipulate. Available either with or without guide tubes. Acupuncture