Cuxson Gerrard Cryospray 59 x 6 cans 50ml Measuring Tapes Seat is moulded for comfort Seat is moulded for comfort and the standard transit and self propel models feature a front cut away and rear recess to facilitate personal hygiene Diasend compatible – allowing you to review trends over time and share results directly with your doctor releasing cell contents and viral antigens It is now widely thought that it is the rate of cooling and thawing which causes this effect rather than the actual temperature achieved and that in practice few cells are able to change quickly enough to protect themselves from the rapid change in temperature