These security containers are designed to provide secure and reliable tamper-proof seals for specimens in transit or storage. After specimen collection the screw cap is tightened first by hand, then by the special wrench, which engages teeth on the lid's rim to create a locked and leakproof seal. To access the specimen for testing procedures, large or small sample spouts may be cut with scissors or pierced with a syringe. Spouts can be resealed with the large or small plugs and returned to storage for further testing. The impact-resistant, durably constructed, and pressure-resistant seal offers excellent protection during handling and transport. Made of non-reactive polyethylene resin.