19 Well UCoolRack Metal Thermoblock, Vial rack, Test Tube Rack

Product features
Keep tubes at desired temperature - from -150℃ through >+100℃ - without direct contact to ice, dry ice, liquid nitrogen or heat sources such as water baths, ovens and incubators
Minimize risk of contamination and keep tubes dry
Tubes stay upright and organized
Consistent and reproducible temperature to all tubes when cooling, (snap)freezing or heating/thawing samples
Beveled finger grips and hard-annodized surface for resistance to rust, corrosion, and abrasion