VERSATILE USE. This box can be used by customers and employees for making anonymous suggestions or comments about a company or service. It also provides the perfect solution for convenient and secure, drop box applications, including key drops, interoffice mail and cash box.\r\nDURABLE CONSTRUCTION. To supply long-lasting strength and use throughout the years, this suggestion lock box is durably crafted of solid steel with a powder-coated, scratch-resistant finish.