Tube Medical grade PP material;Rack:PC material E-Beam Sterile, RNase & DNase Free, Endotoxin Free Automatic caps is suitable for single-channel and multi-channel automatic cap opener Bottom QR code, Side barcode and digital code (3-in-1), all coded message on the tube is same Available in 0.5ml,0.75ml,1ml, 2.0ml  for options Packaging : 0.5ml, 0.75ml , 1ml  : 96PCS/RACK, 20RACK/CASE 2ml   48PCS/RACK, 20RACK/CASE