Pap-Fix Plus brand Pap Jars deliver outstanding performance in preserving and transporting Pap smear slides. Denatured 95% ethyl alcohol provides an ideal method for preserving Pap smear samples, and the rigid polypropylene construction provides fortress-like protection for up to four slides in transit. Prefilled Pap-Fix Plus jars each contain approximately 25ml denatured 95% ethyl alcohol.