This cooler is designed in polycarbonate (PC) to protect enzymes and solutions by maintaining them at temperatures between -20ºC and -15ºC up to 2 hours during sample preparations on the bench. Base is filled with non-toxic gel. Yellow color. The aluminum block has 96 (8x12) wells to hold tubes, strips or plates of 0,2ml. Freeze for 24hrs at -20ºC to -25ºC prior to use