- Fits most 13mm glass tubes
- Fits most 13mm glass evacuated blood collection tubes
- Fits most 12mm plastic culture tubes
- Thumb tab for easy removal
- Polyethylene (LDPE)
- 1000 caps per sealed bag
- Assorted colors available
These colorful snap on closures are an effective way to recap 13mm blood drawing tubes, glass test tubes and most 12mm plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are equipped with a single thumb tab for easy removal.