Aluminium cryo tubes + caps, 3 ml, 14.5mm x 23mm

100 tubes with caps. Make sure that the cap and the vial have the same temperature because the material could slightly shrink or expand under influence of excessive temperature differences. Storage of cryo tubes in liquid nitrogen: 1) Place the tissue in the cryo tube, 2) Close the cryotube tighly and place the cryotube in the liquid nitrogen for 1 minute, 3) The cryo vials can be stored at -80°C. Use of cryo tube in combination with isopentane: 1)Place a cup with isopentane in the liquid nitrogen, after approximately 2 minutes the isopentane clot and have a temperature of -160°C. 2)Place the tissue sample or biopsy in the isopentane for 30 seconds, 3) Place the tissue in the cryo vials and store at -80°C.