d-CON Reusable Ultra Set Covered Mouse Snap Trap, 2 Traps

After one use the trap would not set again?

D-con: mine new purchase wont lock. imagine my surpise when i see dozens others report same thing. why do you sell such a defective design ? no q.c.!

Will it catch rats too?

Is this a mouse trap or a baby play mat?? Did you post the wrong picture or am I missing something?