Lab-Seal® Tamper-Evident Specimen Bags provide an excellent means for securely transferring specimens in hospital and medical environments while helping to save on disposal costs. The bags have a special mechanism where once its marked tab is pulled, the bag will seal securely and permanently with an adhesive glue. Once the bag is sealed, the only way to access the contents would be to tear off the top indicated by a tear line, which would reveal any tampering. Absorbent pad inside bag helps control leakage of specimen.