Three Apple iPhone 5S Units

Three Apple iPhone 5S smartphones. They're various colours with signs of previous use. Approximately 12.4cm x 5.9cm x 0.8cm (4.87" x 2.31" x 0.3" ) dimensions. These would make a useful backup or music player for someone. They are locked so selling for parts or if anyone know how to unlock they can have and use it all 3 of them turns on