Case for 12->24V buck module & Stepper Motor Parallel Module case

1) Case for the 'Ultra-small LM2596 supply module DC / DC BUCK 3A adjustable buck module regulator ultra LM2596S 24V switch 12V 5V 3V In Stock'

2) Bottom cover for 'Stepper Motor Parallel Module' to connect two stepper motors to the one mother board connector