These 2work antibacterial probe wipes are 70 alcohol for disinfecting probes between use the wipes are tested to bs en1276 standards and kill 999 of all bacteria within 30 seconds including e coli listeria salmonella amp paeruginosa each wipe measures 120 x 130mm this handy dispenser tub contains 200 wipes 70 alcohol antibacterial probe wipes kills 999 of all bacteria within 30 seconds including e coli listeria salmonella amp paeruginosa tested to bs en1276 handy hygieni