The Whatman ® OmniSwab is a sterile, non-invasive device for the collection of saliva and cheek buccal cells. Each swab features a unique, brush-like swab head that easily ejects from the stem of the swab for transfer of samples into tubes and multiwell plates. OmniSwabs are pre-sterilized and individually wrapped for single use. Each box includes 100 individual OmniSwabs.