Glass capillary pipette use to transfer a small amount of liquid. It collects blood sample automatically via capillary action Volume available: 2ul, 3ul, 4ul, 5ul, 10ul, 15ul, 20ul, 30ul, 35ul, 40ul, 50ul Advantages of blood collection capillary tube Volume accuracy +/-10% Color: transparent Certificate: ISO9001, ISO13485, CE and FDA Original: Jiangsu, China Sample: free Volume can be customized as request Convenient to use Specifications of blood collection capillary tube with holder Item #VolumePackaging KH17012ul25pcs/bag,150,000pcs/carton KH17023ul25pcs/bag,150,000pcs/carton KH17035ul25pcs/bag,150,000pcs/carton KH170410ul25pcs/bag,150,000pcs/carton KH170515ul25pcs/bag,150,000pcs/carton KH170620ul25pcs/bag,150,000pcs/carton KH170730ul25pcs/bag,150,000pcs/carton KH170840ul25pcs/bag,100,000pcs/carton KH170950ul25pcs/bag,100,000pcs/carton Company profile Jiangsu Kehua Medical Instrument Technology Co., Ltd. is located in Dongtai, Jiangsu - the glorious and prosperous beach of Huanghai Sea, established in 2001. Just need 2.5 hours from Shanghai to our factory, traffic is very convenient. We are a manufacturer which is specialized in disposable pasteur pipettes, plastic capillary tubes , glass capillary tubes, extraction test tube for diagnostic products. We has owned sereval invention patents and utility model patents of pasteur pipettes.Capillary Tubes manufacturers website:http://www.capillarypipette.com/capillary-tubes/