Material: carbon steel. Non-sterile For scalpels by BAYHA ® (Art. No. EX64.1ff). Scalpel blades BAYHA ® Individually packed in paper film. Intended purpose: non-sterile BAYHA ® scalpel blades are designed to fit in BAYHA ® scalpel holders. Non-sterile scalpels are cutting instruments for non-invasive applications in the medical field. Medical device class I ID: 0123