Cooler for centrifuge tubes

Designed in PC to keep reagents and enzymes cool. Suitable for a multitude of centrifuge tubes. Red color. Capacity of 12 tubes of up to 15 ml, array of 3×4. Protects samples from temperature fluctuations. The base is filled with non-toxic gel. Will maintain temperature approximately for 1 hour on the bench. Freeze for 24 hours at -5ºC to -10ºC prior to use