Officemate OIC Verticalmate Heavy Duty Magnets, Small, Set of 2 (29500) Four use with Verticalmate products Attach to keyholes to securely attach Verticalmate organizers to any metal surface Use with metal file cabinets, shelving, or any metal surface Four use with Vertical mate products Attach to keyholes to securely attach vertical mate organizers to any metal surface Use with metal file cabinets, shelving, or any metal surface