Beautiful, with a variety of colors In 2002,the company passed ISO9001 and CMD certifications. (1) Non-toxic and non-pyrogenic(2) High barrel clarity(3) colour: grey,brown,orange,purple,blue,black,green,yellow,beoge,pink,white(4)O.D.(mm): 0.40 0.45 0.50 0.55 0.60 0.70 0.80 0.90 1.00 1.20 1.60(5) Gauge: 27G 26G 25G 24G 23G 22G 21G 20G 19G 18G 16G Disposable sterile hypodermic needle