Transport boxes for moving lab materials are available at Avantor. Lock boxes of plastic and metal are offered with hinged doors and optional straps for securing boxes. Stackable polyethylene containers safely transport solid materials; nesting polypropylene tote boxes are food safe and chemical resistant. For transport of clinical and biological samples, portable boxes with handles are leakproof and transparent. Two way shipper boxes are offered for ambient transport of lab specimens; a tab-lock mechanism keeps boxes closed during shipping.