Serco Group plc is a British company with headquarters based in Hook, Hampshire, England. Serco manage over 500 contracts worldwide. The company employs over 50,000 people. Serco operates in the following sectors of public service provision: Health, Transport, Justice, Immigration, Defence, and Citizens Services.
 

Serco Group plc ordered the mask storage bag as branded gifts to their employees. You can custom size, thickness, printing and packaging of the mask storage bag. The storage folder is made of pp then it is water-proof, oil-resistance, anti-corrosion, acid-proof and nontoxic. Also, the storage is light weight to be recycled used. The mask storage files are suitable for advertisement, promotion, gift, shopping and so on.