This model uses a different tamper evident concept compared to the SecurTainer™ I above. No locking tab to push up is necessary when the tamper evident is used. Simply screw the cap on the container and the tamper evident sealing ring is automatically locking in place. When unscrewed, the ring is detached from the cap. All other features are the same as SecurTainer™ I. CapInserts are available in assorted colors.