Conical tube, Graduated Color of Cap: Blue, red, or Customized. Volume:15ml&50ml Package: Bag and Foam rack ,cardboard rack 15ML, 50ML Centrifuge Tube Conic Centrifuge Tube2315ml Centrifuge Tube,Bulkedblue & red (cap),others25/bag,20bags/ctn2450ml Centrifuge Tube,Bulkedblue & red (cap),others25/bag,20bags/ctn2515ml Centrifuge Tube,Foam-Rackedblue & red (cap),others50/rack,10rack/ctn2650ml ...