500μl Vials+Rack；Bottom barcodes on the Vials, Three barcodes on the side of SBS format racks, and 2D barcode at the bottom of racks, SBS format rack fits 96-well format cryogenic vials perfectly for automatic operations, Dimensions(mm): 128x85x35,1 Sets/Bag , 5 Bags/Pack , 4 Packs/Case (round or square hole)