This fluorescent blue-colored, 80-well microtube rack is designed with 80 wells in a 16 x 5 configuration with each well numbered and two textured writing surfaces allowing convenient sample identification. Made of polypropylene, the rack is autoclavable and ideal for freezing, benchtop use, storage, and transporting samples. Rack is 9in long with a depth of 2-1/16in and a well diameter of 10.5mm. May be conveniently used with Snap Cap Microcentrifuge Tube sizes 500µL, 1.5mL, and 1.8mL as well as Screw Cap Microcentrifuge Tube sizes 0.5mL, 1.5mL, and 2.0mL. Supplied 5 per pack, with 4 packs per case. Autoclavable. Material: Polypropylene. Number Of Wells: 80. Length: 9in. Depth: 2-1/16in. Well Diameter: 10.5mm. Color: Fluorescent Blue. Bio Plas® #: 0070.