- Co-57, Pen Point Marker, 100uCi (3.7MBq), used for Anatomical marking, , Anodized Aluminum rod with a brass cap shield
- Co-57, Pen Point Marker, 200uCi (7.4MBq), used for Anatomical marking, , Anodized Aluminum rod with a brass cap shield
- Co-57, Pen Point Marker, 250uCi (9.25MBq), used for Anatomical marking, , Anodized Aluminum rod with a brass cap shield